1Somewhat, or to some extent — used when a quality or change is present but not to a large degree; slightly more formal than 少し.
疲れが幾分取れて、気分がよくなった。
My fatigue eased somewhat, and I started to feel better.
今日は昨日より幾分涼しい。
Today is a bit cooler than yesterday.
彼の話を聞いて、幾分安心した。
Hearing what he said put me somewhat at ease.
新しい薬のおかげで、痛みは幾分やわらいだ。
Thanks to the new medicine, the pain eased somewhat.
2A part or portion of a whole; some (of an amount or share).
利益の幾分かを寄付に回すことにした。
We decided to put some of the profits toward a donation.
責任の幾分かは私にもある。
Some of the responsibility lies with me too.