Sleek

Part of speech: noun (n.)

That which makes smooth; varnish. [R.]

Part of speech: verb (v.)

To make even and smooth; to render smooth, soft, and glossy; to smooth over. Sleeking her soft alluring locks. Milton. Gentle, my lord, sleek o'er your rugged looks. Shak.

Part of speech: adjective (a.)

1. Having an even, smooth surface; smooth; hence, glossy; as, sleek hair. Chaucer. So sleek her skin, so faultless was her make. Dryden.

2. Not rough or harsh. Those rugged names to our like mouths grow sleek. Milton.

Part of speech: adverb (adv.)

With ease and dexterity. [Low]