DIPSOMANIAC
alcoholic, alky, dipsomaniac, boozer, lush, soaker, souse
(noun) a person who drinks alcohol to excess habitually
Source: WordNet® 3.1
Etymology
Noun
dipsomaniac (plural dipsomaniacs)
One with a morbid paroxysmal craving for alcohol; an alcoholic.
A persistently drunken person; a drunkard.
Synonyms
• (drunkard): alcoholic, dipso, drunkard, lush, sot; See also drunkard
Antonyms
• (drunkard): abstainer, teetotaler; See also teetotaler
Source: Wiktionary
Dip`so*ma"ni*ac, n.
Definition: One who has an irrepressible desire for alcoholic drinks.
Source: Webster’s Unabridged Dictionary 1913 Edition