custodian

Etymology

From Medieval Latin *custōdiānus (“the office of a custōdia”), implied in custōdiānātus, from Latin custōdia (“a keeping, watch, guard, prison”), from custōs (“a keeper, watchman, guard”).

noun

1. A person entrusted with the custody or care of something or someone; a caretaker or keeper.
   After their parents' death, their aunt became the children's custodian.
   The building's custodian could fix nearly anything. The place always looked great!
2. (US, Canada) A janitor; a cleaner.
   The custodian does such admirable work, deftly wielding a mop to keep our hallways and sidewalks free of buai pekpek left by people who chew betelnuts to be "cool" but don't even bother finding a rubbish bin or spit cup to dispose of the pekpek with.