O'er the twilight groves and dusky caves.
Pope.
Twill (?), v. i. [imp. & p. p. Twilled (?); p. pr. & vb. n. Twilling.]
[Scotch tweel; probably from LG. twillen to make double, from twi- two;
akin to AS. twi-, E. twi- in twilight. See Twice, and cf. Tweed,
Tweel.] To weave, as cloth, so as to produce the appearance of diagonal
lines or ribs on the surface.
Twill, n. [Scotch tweel. See Twill, v. t.] 1. An appearance of diagonal
lines or ribs produced in textile fabrics by causing the weft threads
to pass over one and under two, or over one and under three or more,
warp threads, instead of over one and under the next in regular
succession, as in plain weaving.