ruff > define

An external body part consisting of feathers or hair about the neck of a bird or other animal.
- synonyms: frill
A high tight collar.
- synonyms: choker, ruffle, neck ruff
Common Eurasian sandpiper; the male has an erectile neck ruff in breeding season.
- synonyms: Philomachus pugnax
Card games. ( the act of taking a trick with a trump when unable to follow suit)
- synonyms: trumping

(n.) A game similar to whist, and the predecessor of it.
(n.) A variety of the domestic pigeon, having a ruff of its neck.
(v.i.&t.) To trump.
(n.) A muslin or linen collar plaited, crimped or fluted, worn formerly by both sexes, now only by women and children.
(n.) A set of lengthened or otherwise modified feathers round or on, the neck of a bird.
(n.) Something formed with plaits or flutings, like the collar of this name.
(n.) Wanton or tumultuous procedure or conduct.
(n.) Alternative of Ruffe.
(n.) A collar on a shaft ot other piece to prevent endwise motion. See Illust. of Collar.
(v.t.) To hit, as the prey, without fixing it.
(n.) A limicoline bird of Europe and Asia (Pavoncella, / Philommachus, pugnax) allied to the sandpipers. The males during the breeding season have a large ruff of erectile feathers, variable in their colors, on the neck, and yellowish naked tubercles on the face. They are polygamous, and are noted for their pugnacity in the breeding season. The female is called reeve or rheeve.
(v.t.) To beat with the ruff or ruffle, as a drum.
(n.) A low, vibrating beat of a drum, not so loud as a roll; a ruffle.
(n.) An exhibition of pride or haughtiness.
(v.t.) To ruffle; to disorder.
(n.) The act of trumping, especially when one has no card of the suit led.

by Webster's Revised Unabridged Dictionary

Ruff is a masculine given name