'Alcestis' originates from Greek mythology, specifically the name 'Ἄλκηστις' (Alkēstis), where 'ἀλκή' (alkē) meant 'strength' and 'ἵστημι' (histēmi) meant 'to stand'.

'Ἄλκηστις' transformed into the Latin 'Alcestis', and eventually became the modern English name 'Alcestis'.

Initially, it referred to a mythological character known for her strength and sacrifice, and this meaning has largely remained the same in modern usage.