15 letters · 26 points in Scrabble
originEtymology tree Proto-Indo-European *h₂eHs- Proto-Indo-European *-tḗr Proto-Indo-European *h₂stḗr Proto-Hellenic *astḗr Ancient Greek ἀστήρ (astḗr) Ancient Greek ᾰ̓́στρον (ắstron)der. English astro- Proto-Indo-European *bʰeh₂- Proto-Indo-European *bʰéh₂os Proto-Hellenic *pʰáwos Ancient Greek φᾰ́ος (phắos) Ancient Greek φῶς (phôs) Ancient Greek φωτο- (phōto-)der. English photo- Proto-Indo-European…
Etymology from Wiktionary, CC BY-SA 3.0