English

Ringnut

From ring + nut, by analogy with wingnut.

A compound of ring + nut

Proto-Indo-European *(s)krengʰ-

Proto-Germanic *hringaz

Proto-West Germanic *hring

Old English hring ‘ring’

Middle English ryng

English ring

Proto-Italic *knuks

…

Proto-Germanic *hnuts

Proto-West Germanic *hnut

Old English hnutu

Middle English note

English nut

Today it means

noun A fan of the opera cycle Der Ring des Nibelungen by Richard Wagner.

Language periods are conventional ranges, not dates for this word.