sleeken

verb

1. (ambitransitive)To make or become sleek.

   “Now I have had my gird at thee, my servant, I must tell thee that in sooth it is not all for nothing that thou hast had these months of rest; for verily thou hast grown more of a woman thereby, and hast sleekened and rounded much.”

   “He tried to imagine them sleekened and breasted, not just the daughters of peasants such as he had known when he was young and a peasant himself but succubi of the sort he had once resisted in the night, and he felt nothing.”