Толковый словарь английского языка Oxford English Reference - otic

suffix forming adjectives and nouns corresponding to nouns in -osis, meaning 'affected with or producing or resembling a condition in -osis' or 'a person affected with this' (narcotic; neurotic; osmotic). Derivatives -otically suffix forming adverbs. Etymology: from or after F - otique f. L f. Gk -otikos adj. suffix OTIC adj. of or relating to the ear. Etymology: Gk otikos f. ous otos ear