Meaning

noun the financial gain (earned or unearned) accruing over a given period of time

originFrom Middle English income, perhaps continuing (in altered form) Old English incyme (“an in-coming, entrance”), equivalent to in- + come. Cognate with Saterland Frisian Íenkúumen (“income”), West Frisian ynkommen (“income”), Dutch inkomen, inkomst (“income, earnings, gainings”), German Low German Inkumst (“income”), German Einkommen, Einkunft (“income, earnings, competence”), Danish indkomst…

Etymology from Wiktionary, CC BY-SA 3.0