The Word is:”my”

my

/mʌɪ/
determiner
possesive pronoun: my

1. belonging to or associated with the speaker.
“my name is John”

  • informal
    used with a name to refer to a member of the speaker’s family.
    “my Johnny, see, he was smart”
  • used with forms of address in affectionate, sympathetic, humorous, or patronizing contexts.
    “my dear boy”
  • 2. used in various expressions of surprise.
    “my goodness!”

    Source credit: Google