Where does “Chastain” come from?

Chastain (English) comes from Old French chastaigne, from Old English ċisten, from Latin castanea, from Ancient Greek καστάνεια, from Ancient Greek κᾰ́στᾰνᾰ — sweet chestnuts; chestnut.

Ancestry of “Chastain”, step by step

StepLanguageWordMeaning
1Old Frenchchastaignechestnut
2Old Englishċistenchestnut
3Latincastaneaa chestnut tree; a chestnut
4Ancient GreekκαστάνειαAlternative form of κᾰ́στᾰνᾰ; chestnut
5Ancient Greekκᾰ́στᾰνᾰsweet chestnuts; chestnut
Every word from Ancient Greek κᾰ́στᾰνᾰ