janitor /ˈdʒanɪtə 
/ ▸ noun mainly North American English a person employed to look after a building; a caretaker: he was employed as a janitor and lived on the school premises.
– DERIVATIVES janitorial /dʒanɪˈtɔːrɪəl/ adjective – ORIGIN mid 16th century: from Latin, from janua ‘door’.
EnglishOxford Dictionary of English
