The quality or capacity of being comfortable; the degree to which something provides comfort and ease.
From 'comfortable' (Old French 'confortable,' from Latin 'confortare': strengthen) + '-ability' suffix (-able + -ity). An archaic or formal alternative to 'comfortableness.'
While 'comfortability' is grammatically perfect, English speakers rejected it in favor of simpler forms like 'comfort' and 'comfortableness'—a reminder that just because you can build a word doesn't mean language will adopt it.
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