resident (n.) Look up resident at Dictionary.com
mid-15c., "an inhabitant, one who resides," from resident (adj.). Meaning "medical graduate in practice in a hospital as training" first attested 1892, American English.
resident (adj.) Look up resident at Dictionary.com
late 14c., "dwelling, residing," from Old French resident and directly from Latin residentus, past participle of residere (see reside).