Sleek

a. [compar. SLEEKER; superl. SLEEKEST.] [O. Eng. slick; Icel. slikia, to smooth, polish, D. sluik, smooth, even.]

1. Having an even, smooth surface; smooth; whence, glossy; as, sleek hair. “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.

[imp. & p. p. SLEEKED (slēkt); p. pr. & vb. n. SLEEKING.]

1. To make even and smooth; as, to sleek the hair. B. Jonson.
2. To render smooth, soft, and glossy.

Gentle my lord, sleek o'er your rugged looks. Shak.