one's - Wiktionary, the free dictionary (original) (raw)

From Wiktionary, the free dictionary

From Middle English ones, equivalent to one +‎ -'s.

one's

  1. Belonging to one.
    One tries one's best.

belonging to one

Contraction of one +‎ is, equivalent to one + 's.

one's

  1. Contraction of one +‎ is.
    This one's for you.