ormer
An abalone or sea-ear, particularly Haliotis tuberculata, common in the Channel Islands.
The food I like best of all foods is ormers; but you can't always get them.
Where it comes from
From Norman ormèr/ormer, variants of French ormier, contraction of oreille-de-mer, from Late Latin *auris maris (“ear of the sea”), from Latin auris (“ear”) + mare (“sea”).
Adapted from the Wiktionary entry ormer (CC BY-SA 4.0).