rounden

Etymology

From round + -en.

rounden means to make round or rounded. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

verb

To make round or rounded
To become round or rounded“This specimen shows a wide, concave and smooth fossula with a clear-cut thread tying the first tooth to the first denticle; there are still four other irregular denticles after which the inside part of the fossula sinks and roundens.”