un pron /ũ̄/ mid-tone /ṹ/ high-tone spelling unconfirmed
Definitions
  1. him, her, it (third-person singular non-honorific object pronoun following a monosyllabic verb with a high-tone /ũ/)
Source: Wiktionary, where this word is spelled “un”. Reference: en-un-yo-pron-nCFowsQX