Epidote
/ˈɛpɪˌdoʊt/noun
A green, yellow-green, or brown mineral in the epidote group, commonly found in metamorphic rocks.
Did you know?Epidote was named from Greek epidosis, meaning “addition” or “increase,” because of the way crystal faces can appear to grow by adding one more side.
Etymological Timeline
Ancient Greek
Greek
epidosis
“an addition or increase”
Late Greek
Greek
epidotēs
“one who gives in addition; added on”
1801
French
épidote
“name applied to the mineral by René Just Haüy”
19th Century
English
epidote
“the mineral name adopted into English usage”