Meanings
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Thesaurus
Simplified etymology
Sullen comes from Old French sulein, from sol, meaning “sole” or “alone,” and ultimately from Latin solus, “alone.” Its early senses included “single,” “solitary,” and “unusual”; the association of solitude with unsociability led to the later meaning “silently gloomy or resentful.”
Etymology
From Middle English solein ('solitary, sole, averse to company'), from Anglo-Norman *solein, from Vulgar Latin *sōlānus, from Latin sōlus ('alone'); the sense shifted from 'solitary' to 'gloomy'.
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