War"ble, v. t. [imp. & p. p. Warbled (?); p. pr. & vb. n. Warbling
(?).] [OE. werbelen, OF. werbler; of Teutonic origin; cf. G. wirbeln to
turn, to warble, D. wervelen, akin to E. whirl. See Whirl.]
1. To sing in a trilling, quavering, or vibratory manner; to modulate
with turns or variations; to trill; as, certain birds are remarkable
for warbling their songs.