in Claddagh ring (Irish fáinne Chladach), from the village of Claddagh, County Gallway. The village name is literally "stony beach."
before a vowel, cycl-, word-forming element in technical terms meaning "circle, ring, rotation," from Latinized form of Greek kyklos "circle, wheel, ring" (from PIE root *kwel- (1) "revolve, move round"). In organic chemistry it is used in forming chemical names of cyclic compounds.
"rounded, made circular," 1830, from Latin circinatus, past participle of circinare "to make round," from circus "ring" (see circus). Related: Circination.
1630s, "sound loudly, resound" (intransitive), from peal (n.). Transitive sense of "to utter or cause to ring loudly and sonorously" is by 1714. Related: Pealed; pealing.