The #Welsh: 'wystrys' ("oysters") was borrowed from Middle English: 'oistres' from #Latin: 'ostrea' same as the other languages #Breton, #Cornish and #French but all ultimately from Ancient #Greek: ὄστρεον (óstreon). Etymology of #Cymraeg: 'llymarch' is unknown. #Kernewek #Brezhoneg #fish #langsky