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

yawn \yawn\ yaddn, v. i. imp.  p. p. yawned; p. pr. 
   vb. n. yawning. oe. yanien, yoghanien, ganien, gonien,
   as. g=anian; akin to ginian to yawn, gimacnan to yawn,
   open wide, g. gaumhnen to yawn, ohg. gin=en, gein=on,
   icel. gimacna to yawn, gin the mouth, oslav. zijati to
   yawn, l. hiare to gape, yawn; and perhaps to e. begin, cf.
   gr. cheia` a hole. root47b. cf. begin, gin to begin,
   hiatus.
   1913 webster
   1. to open the mouth involuntarily through drowsiness,
      dullness, or fatigue; to gape; to oscitate. "the lazy,
      yawning drone." --shak.
      1913 webster

            and while above he spends his breath,
            the yawning audience nod beneath.     --trumbull.
      1913 webster

   2. to open wide; to gape, as if to allow the entrance or exit
      of anything.
      1913 webster

            't is now the very witching time of night,
            when churchyards yawn.                --shak.
      1913 webster

   3. to open the mouth, or to gape, through surprise or
      bewilderment. --shak.
      1913 webster

   4. to be eager; to desire to swallow anything; to express
      desire by yawning; as, to yawn for fat livings. "one long,
      yawning gaze." --landor.
      1913 webster
see also:
yawned yawning hiatus 

Yawned >> Y Words
Yawned, definition of term: Yawned
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