frine means to grumble, whine, or whimper; fret; show discontent; murmur; complain. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
Of North Germanic origin, akin to Swedish dialectal fryna (“to wrinkle up one's nose, make a wry face”), Norwegian frøyna (“to wrinkle up one's nose, make a wry face”). Perhaps related to frown.
verb
- To grumble, whine, or whimper; fret; show discontent; murmur; complain.