sot
noun
[ sɒt ]
• a habitual drunkard.
sot
verb
• drink alcohol habitually.
• "the few reckless vagabonds with whom he sotted in the alehouse"
Origin:
late Old English sott ‘foolish person’, from medieval Latin sottus, reinforced by Old French sot ‘foolish’. The current sense of the noun dates from the late 16th century.