Ancient Greek ἐντός

← Proto-Hellenic *entós (inherited)

← Proto-Indo-European *h₁éntos (inherited)

← Proto-Indo-European *h₁én (derived)

→ English ento- (derived)

→ Greek πλακούντας (mention)

→ Ancient Greek εἴσω (link)

→ Ancient Greek ἔντοσθεν (affix)