nephalist
One who practises nephalism; a teetotaller
obsolete
Our JH Andrews, a nephalist and vegetist of lifelong standing.
Where it comes from
From Ancient Greek νηφάλιος (nēphálios, “sober”), from νήφω (nḗphō, “to be sober”).
Adapted from the Wiktionary entry nephalist (CC BY-SA 4.0).