köken: Etymology tree Proto-Indo-European *dyew- Proto-Indo-European *-ós Proto-Indo-European *deywós Proto-Indo-Iranian *daywás Proto-Iranian *daywáh Old Persian 𐎭𐎡𐎺 (d-i-v /daivaʰ/) Middle Persian 𐫅𐫏𐫇 (dyw /dēw/) Persian دیو (dēw /div)bor. Azerbaijani div Borrowed from Persian دیو (dēw /div).
köken: Borrowed from Russian тита́н (titán), which derived from the discovery made by German chemist Martin Heinrich Klaproth, who gave its name as an analogue to his previous discovery of uranium. Ultimately, derived from Ancient Greek Τιτάν (Titán), the first sons of the earth.
From Ancient Greek Τιτάν from the ancient accusative τὸν Τιτᾶνα. For the figurative sense, semantic loan from French titan, from Latin Titan, from Ancient Greek.