Woolen has begun the same evolution. Meaning "articles of linen fabric collectively" is from 1748, now sometimes extended unetymologically to cotton and artificial fabrics. The Old English noun also carried into Middle English as lin (n.) "linen" and persisted into 17c. and later in technical uses. The Middle English phrase under line (c. 1300) meant "in one's clothes." Linen-lifter (1650s) was old slang for an adulterous male.
small finch-like Eurasian songbird, 1530s, from French linette "grain of flax," diminutive of lin "flax," from Latin linum "flax, linen thread" (see linen). Flaxseed forms much of the bird's diet. Old English name for the bird, linetwige, with second element perhaps meaning "to pluck," yielded Middle English and dialectal lintwhite. Also compare German Hänfling "linnet," from Hanf "hemp."
late 14c., "flax prepared for spinning," also "refuse of flax used as kindling," somehow from the source of Old English lin "flax" (see linen). Perhaps from or by influence of French linette "grain of flax," diminutive of lin "flax," from Latin linum "flax, linen;" Klein suggests from Latin linteum "linen cloth," neuter of adjective linteus.
Later "flocculent flax refuse used as tinder or for dressing wounds" (c. 1400). Still used for "flax" in Scotland in Burns' time. Applied to stray cotton fluff from 1610s, though in later use this is said to be American English.
stiff material originally made partly or wholly of horsehair, 1830, from French crinoline "hair cloth" (19c.), from Italian crinolino, from crino "horsehair" (from Latin crinis "hair," from PIE root *sker- (2) "to turn, bend") + lino "flax, thread," from Latin linum (see linen). So called from the warp and woof fibers of the original mixture.
Petticoats made of it were worn by women under the skirt to support or distend it, and the meaning of the word subsequently was extended to the steel or whalebone framework used for making hoop-skirts (1848).