[1] : The Collaborative International Dictionary of English v.0.48

weigh \weigh\ w=a, n. naut.
   a corruption of way, used only in the phrase under weigh.
   1913 webster

         an expedition was got under weigh from new york.
                                                  --thackeray.
   1913 webster

         the athenians . . . hurried on board and with
         considerable difficulty got under weigh. --jowett
                                                  thucyd..
   1913 webster
see also:
way under weigh 

[2] : The Collaborative International Dictionary of English v.0.48

weigh \weigh\, n. see wey.
   a certain quantity estimated by weight; an english measure of
   weight. see wey.
   1913 webster
see also:
wey 

[3] : The Collaborative International Dictionary of English v.0.48

weigh \weigh\, v. t. imp.  p. p. weighed; p. pr.  vb. n.
   weighing. oe. weien, weyen, weghen, as. wegan to bear,
   move; akin to d. wegen to weigh, g. waumgen, wiegen, to
   weigh, bewegen to move, ohg. wegan, icel. vega to move,
   carry, lift, weigh, sw. vaumga to weigh, dan. veie, goth.
   gawigan to shake, l. vehere to carry, skr. vah. ????. see
   way, and cf. wey.
   1913 webster
   1. to bear up; to raise; to lift into the air; to swing up;
      as, to weigh anchor. "weigh the vessel up." --cowper.
      1913 webster

   2. to examine by the balance; to ascertain the weight of,
      that is, the force with which a thing tends to the center
      of the earth; to determine the heaviness, or quantity of
      matter of; as, to weigh sugar; to weigh gold.
      1913 webster

            thou art weighed in the balances, and art found
            wanting.                              --dan. v. 27.
      1913 webster

   3. to be equivalent to in weight; to counterbalance; to have
      the heaviness of. "a body weighing divers ounces."
      --boyle.
      1913 webster

   4. to pay, allot, take, or give by weight.
      1913 webster

            they weighed for my price thirty pieces of silver.
                                                  --zech. xi.
                                                  12.
      1913 webster

   5. to examine or test as if by the balance; to ponder in the
      mind; to consider or examine for the purpose of forming an
      opinion or coming to a conclusion; to estimate
      deliberately and maturely; to balance.
      1913 webster

            a young man not weighed in state affairs. --bacon.
      1913 webster

            had no better weighed
            the strength he was to cope with, or his own.
                                                  --milton.
      1913 webster

            regard not who it is which speaketh, but weigh only
            what is spoken.                       --hooker.
      1913 webster

            in nice balance, truth with gold she weighs. --pope.
      1913 webster

            without sufficiently weighing his expressions. --sir
                                                  w. scott.
      1913 webster

   6. to consider as worthy of notice; to regard. obs. or
      archaic "i weigh not you." --shak.
      1913 webster

            all that she so dear did weigh.       --spenser.
      1913 webster

   to weigh down.
      a to overbalance.
      b to oppress with weight; to overburden; to depress. "to
          weigh thy spirits down." --milton.
          1913 webster
see also:
weighed weighing way wey to weigh down 

[4] : The Collaborative International Dictionary of English v.0.48

weigh \weigh\, v. i.
   1. to have weight; to be heavy. "they only weigh the
      heavier." --cowper.
      1913 webster

   2. to be considered as important; to have weight in the
      intellectual balance.
      1913 webster

            your vows to her and me . . . will even weigh.
                                                  --shak.
      1913 webster

            this objection ought to weigh with those whose
            reading is designed for much talk and little
            knowledge.                            --locke.
      1913 webster

   3. to bear heavily; to press hard.
      1913 webster

            cleanse the stuffed bosom of that perilous stuff
            which weighs upon the heart.          --shak.
      1913 webster

   4. to judge; to estimate. r.
      1913 webster

            could not weigh of worthiness aright. --spenser.
      1913 webster

   to weigh down, to sink by its own weight.
      1913 webster
see also:
to weigh down 

[5] : WordNet (r) 2.0

weigh
     v 1: have a certain weight
     2: show consideration for; take into account; "you must
        consider her age"; "the judge considered the offender's
        youth and was lenient" syn: consider, count
     3: determine the weight of; "the butcher weighed the chicken"
        syn: librate
     4: have weight; have import, carry weight; "it does not matter
        much" syn: count, matter
     5: to be oppressive or burdensome; "weigh heavily on the mind",
        "something pressed on his mind" syn: press
see also:
consider count librate matter press 

[6] : Moby Thesaurus II by Grady Ward, 1.0

148 moby thesaurus words for "weigh":
   amount to something, analogize, appraise, appreciate, assay,
   assess, assimilate, balance, be abstracted, be featured, be heavy,
   be influential, be persuasive, be prominent, be somebody,
   be something, bring into analogy, bring into comparison, brood,
   calculate, calibrate, caliper, carry, carry weight, catalog,
   categorize, charge, check a parameter, chew the cud, class,
   classify, compare, compare and contrast, compare with, compute,
   confront, consider, contemplate, contrast, count, counterbalance,
   counterpose, cumber, cut ice, cut some ice, debate, deliberate,
   dial, digest, divide, draw a comparison, draw a parallel, encumber,
   estimate, evaluate, excogitate, factor, fathom, gauge,
   get top billing, graduate, group, have an in, have full play,
   have influence, have personality, have pull, have weight, heft,
   hold the scales, identify, import, introspect, lade, lie heavy,
   liken, liken to, load, lumber, match, matter, measure,
   measure against, meditate, mensurate, metaphorize, mete, meter,
   militate, mind, muse, oppose, pace, parallel, perpend,
   place against, play around with, play with, plumb, ponder, prize,
   probe, quantify, quantize, rate, reflect, register, relate,
   ruminate, run a comparison, saddle, set in contrast,
   set in opposition, set off against, set over against, sift,
   signify, similize, size, size up, sort, sort out, sound, span,
   speculate, stand out, star, step, strike a balance, study, survey,
   take a reading, tax, tell, think over, thrash out, tip the scales,
   toy with, triangulate, valuate, value, view together,
   weigh against, weigh heavy, weigh in, weigh out, weight, winnow

Weigh >> W Words
Weigh, definition of term: Weigh
weigh_pag1.html

Molecular Weigh >> M Words
Molecular Weigh, definition of term: Molecular Weigh
molecular+weigh_pag1.html