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

under \un"der\, a.
   lower in position, intensity, rank, or degree; subject;
   subordinate; -- generally in composition with a noun, and
   written with or without the hyphen; as, an undercurrent;
   undertone; underdose; under-garment; underofficer;
   undersheriff.
   1913 webster

   under covert zool., one of the feathers situated beneath
      the bases of the quills in the wings and tail of a bird.
      see illust. under bird.
      1913 webster
see also:
under covert bird 

Covert >> C Words
Covert, definition of term: Covert
covert_pag1.html

Go Under >> G Words
Go Under, definition of term: Go Under
go+under_pag1.html

Feme Covert >> F Words
Feme Covert, definition of term: Feme Covert
feme+covert_pag1.html