Make smooth by polishing

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Levigate \Lev"i*gate\ (-g[asl]t), a. [L. levigatus, p. p.] Made smooth, as if polished.

Wiktionary Word definitions in Wiktionary
1 smooth. 2 (context rare English) Made less harsh or burdensome; alleviated. v 1 (context transitive English) To make smooth or polish. 2 (context transitive English) To make into a smooth paste or fine powder. 3 (context transitive English) To separate ...