eyebrow

Etymology

From Middle English eȝebreu, alteration of Old English ēaganbrū (“eyebrow”), equivalent to eye + brow. The corresponding Old English ēagbrǣw meant "eyelid". Compare Dutch oogbrauw (“eyelid; eyelash; eyebrow”), German Augenbraue (“eyebrow”).

noun

1. The hair that grows over the bone ridge above the eye socket.
2. (construction) A dormer, usually of small size, whose roof line over the upright face is typically an arched curve, turning into a reverse curve to meet the horizontal line at either end.
3. A clump of waste fibres that builds up in a roller machine.

verb

1. (intransitive) To build up waste fibres in a roller machine.
2. (transitive) To signal with one's eyebrows.
   Rodas watched Tinker disappear through the door before eyebrowing a question at Barrow. Barrow gestured at him to stay put. Rodas settled back. 2015, Kathy Reichs, Bones Never Lie, page 23