Meaning

noun an irritating cutaneous sensation that produces a desire to scratch

verb scrape or rub as if to relieve itching

verb have or perceive an itch

originFrom Middle English ecchinge, ȝitchinge, ʒicchinde, ʒichande (also unassibilated as yckyng), from Old English ġiċċende (“itching”), from Proto-West Germanic *jukkjandi, present participle of *jukkjan (“to itch”), equivalent to itch + -ing.

Etymology from Wiktionary, CC BY-SA 3.0