warbled
Webster's Dictionary (GCIDE)
Warble \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.] [1913 Webster]
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. [1913 Webster]
2.To utter musically; to modulate; to carol. [1913 Webster]
If she be right invoked in warbled song.— Milton.[1913 Webster]
Warbling sweet the nuptial lay.— Trumbull.[1913 Webster]
3.To cause to quaver or vibrate. "And touch the warbled string." --Milton. [1913 Webster]