The story
- Proto-Indo-European*wéyHs
- Proto-Hellenic*wīs
- Ancient Greek*ϝῑ́ς (*wī́s)
- Ancient Greekῑ̓νός (īnós)
- English todayinosite
From Ancient Greek ἰνός (inós, genitive singular of ἴς (ís, “sinew, tendon”)) + -ite.
Etymology from Wiktionary, CC BY-SA 4.0.