ちょっと待ってね…
Grammar list

(Ni shi te)

at (the point of) / being (X), (emphatic).

Connection rules

  • Noun + にして. Typically with age, position, or identity nouns.
  • Age emphasis: 80歳にして ('at 80 years old', emphasizing the age as notable).
  • Dual-identity sense: 医者にして作家 ('a doctor who is also a writer').

Examples

1.
かれ80さいいま元気げんき

Kare wa 80 sai ni shi te, ima mo genki da.

At 80 years old, he is still energetic.

at (the point of) / being (X), (emphatic)

2.
いまおもあれ最後さいごチャンスだっ

Ima ni shi te omoe ba, are ga saigo no chansu da ta.

Now that I think about it, that was my last chance.

at (the point of) / being (X), (emphatic)

Practice

He started his own business at the age of 40.

彼は___、自分の会社を立ち上げた。

Romaji also accepted