Syn. — Prompt; eager; ardent; sharp; acute; cutting; penetrating; biting; severe; sarcastic; satirical; piercing; shrewd.

KEEN
Keen, v. t.

Defn: To sharpen; to make cold. [R.]
Cold winter keens the brightening flood. Thomson.

KEEN
Keen, n. Etym: [Ir. caoine.]

Defn: A prolonged wail for a deceased person. Cf. Coranach. [Ireland]
Froude.

KEEN
Keen, v. i.

Defn: To wail as a keener does. [Ireland]

KEENER
Keen"er, n.

Defn: A professional mourner who wails at a funeral. [Ireland]

KEENLY
Keen"ly, adv.