KEY

Greek Learning Greek
1

The word key derives from the Latin clavis (key), which is related to the Greek κλαίς (clais; key), Doric form of κλείς (clis; key). In French clef (key).

In Greek
α) κλειδί: key [clidi]
β) κλειδα?ιά: lock, safety lock [clidaria]
γ) κλειδα?άς: locksmith [clidaras]
δ) κλειδώνω: lock (in/out/away) [clidono]
ε) κλείδωμα: lock(ing) [clidoma]
στ) κλείνω: close, shut [clino]

More: http://ewonago.blogspot.com/2008/08/key.html

2

English “key” is from an Old-English word of uncertain derivation. It certainly isn’t latinate.

In the future, instead of dumping each of these separately, join them into a single post.