偶
たま · tama · JLPT N3 · adverb
even number
👫 偶 = person 亻 + 禺 (figure): a matching figure beside you, so a pair
偶 first meant a carved human figure, a counterpart standing next to you. From there it came to mean a pair, a mate, and an even number (偶数 ぐうすう). Read as たま in 偶に (tamani), occasionally: a meeting that happens only by chance.