English
almain rivet
From Almain + rivet, attested 1530 (as almayne ryvettes).
The story
From Almain + rivet, attested 1530 (as almayne ryvettes). Perhaps named for the overlapping plates' sliding on rivets, although it has also been suggested that rivet meant a suit of armor, related to French revêtir.
Today it means
noun A kind of light, flexible plate armour first used in Germany around 1450, designed to be manufactured easily, especially en masse.
Language periods are conventional ranges, not dates for this word.
Etymograph / almain rivet