verb (used with object), knuck·led, knuck·ling.
- to apply oneself vigorously and earnestly; become serious: Just knuckle down for an hour or so and finish the work.
- Also knuckle under. to submit; yield.
Origin of knuckle
Examples from the Web for knuckle
As I rub my left hand, I notice a small bruise around the knuckle of my pinkie finger.
The painting, created between 1500 and 1525, features a wealthy woman in a bejeweled collar, also wearing a first knuckle ring.First Knuckle Rings, Popular During the Renaissance, Return to Fashion|Misty White Sidell|January 31, 2013|DAILY BEAST
“Being new in town, it was really important to focus and knuckle down,” she said of her decision to focus on acting.‘Game of Thrones’: Esmé Bianco Talks About Ros, Sexposition, Nudity, and More|Jace Lacob|May 18, 2012|DAILY BEAST
He is tough, a Scottish bruiser when it comes to a knuckle fight.
Can we tighten our belts, knuckle down and use that knowledge that our forefathers and mothers gave us?
A knuckle bone or a cramp bone carried in the pocket prevents cramp.Weather and Folk Lore of Peterborough and District|Charles Dack
Having washed a fore-quarter or knuckle of veal, and cracked the bones, put it on to boil with two quarts and a pint of water.Directions for Cookery, in its Various Branches|Eliza Leslie
I felt mortified that I had ever had a desire to "knuckle up" with any but kings' sons or sultans' little boys.
Boil a knuckle of veal to shreds, add a quarter of a pound of vermicelli, half a pint of cream, and lemon peel and mace.The Young Housekeeper's Friend|Mrs. (Mary Hooker) Cornelius
Mr Fairman knocked with his knuckle before he entered, and a gruff voice desired him to "come in."
British Dictionary definitions for knuckle
Word Origin for knuckle
Word Origin and History for knuckle
mid-14c., knokel "finger joint; any joint of the body, especially a knobby one; morbid lump or swelling;" common Germanic (cf. Middle Low German knökel, Middle Dutch cnockel, German knöchel), literally "little bone," a diminutive of Proto-Germanic root *knuck- "bone" (cf. German Knochen "bone).
As a verb from 1740, originally in the game of marbles. To knuckle down "apply oneself earnestly" is 1864 in American English, extended from marbles (putting a knuckle on the ground in assuming the hand position preliminary to shooting); to knuckle under "submit, give in" is first recorded 1740, supposedly from the former more general sense of "knuckle" and here meaning "knee," hence "to kneel." The face-busting knuckle-duster is from 1858 (a duster was a type of protective coat worn by workmen).
Medicine definitions for knuckle
Idioms and Phrases with knuckle
In addition to the idioms beginning with knuckle
- knuckle down
- knuckle under
- rap someone's knuckles