verb (knits, knitting; past and past participle knitted or (especially in sense 2) knit)
1 [with object] make (a garment or other item) by interlocking loops of wool or other yarn with knitting needles or on a machine:she was knitting a sweater
make (a stitch or row of stitches) by interlocking loops of wool:cast on and knit a few rows
make (a plain stitch) in knitting:knit one, purl one
2unite or cause to unite: [no object]:disparate regions had begun to knit together under the king [with object]:the experience knitted the men together (as adjective, with submodifier knit)a closely knit family
[with object] (of parts of a broken bone) become joined.
3 [with object] tighten (one’s eyebrows) in a frown of concentration, disapproval, or anxiety:Marcus knitted his brows
Old Englishcnyttan, of West Germanic origin; related to German dialect knütten, also to knot1. The original sense was 'tie in or with a knot', hence 'join, unite' (sense 2 of the verb); an obsolete Middle English sense 'knot string to make a net' gave rise to sense 1 of the verb