• 幾いくつ — how many
• 幾度いくど — how many times
• 幾分いくぶん — somewhat; to some extent
• 幾何きか — geometry
• 幾許いくばく — how much; how many

幾 combines the radical 幺（いとのうえ） “tiny/thread” with the phonetic elements that give the reading キ. Its meaning developed into “how many” or “how much,” used in questioning number or degree.