9 letters · 13 points in Scrabble
adjective derived or originating internally
adjective of rocks formed or occurring beneath the surface of the earth
originEtymology tree Proto-Indo-European *h₁n̥dóm Proto-Hellenic *éndon Ancient Greek ἔνδον (éndon)der. English endo- French -gènebor. Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English -genic English endogenic From endo- + -genic.
Etymology from Wiktionary, CC BY-SA 3.0