幾いく年ねん

noun, adverb

number of years; how many years

Used to ask or talk about an unspecified number of years, often in questions or expressions of duration. The reading いくとせ is more literary or poetic.

• この町まちに住すんでから幾いく年ねんになりますか。

  How many years has it been since you started living in this town?

• 幾いく年ねんもの間あいだ、彼かれはその研けん究きゅうを続つづけてきた。

  He has continued that research for many years.