This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
剹 combines 翏 and 刂 (knife). The exact historical development is uncertain, but it likely relates to cutting or killing, as suggested by the knife component and the kun readings ころ.す (to kill) and けず.る (to shave/scrape).
The left side 翏 suggests feathers or wings, and the right side 刂 is a knife. Imagine using a knife to trim feathers or to kill a bird, connecting to the possible meanings of cutting or killing.
For リク, imagine a lick of a knife: lick -> リク, as you carefully shave or cut with the blade.