I found a bow saw at an old tool shop.
The bow saw is hardly used nowadays.
Kanji spelling using 弦 (string) and 鋸 (saw); rare and technical.
Mixed kana-kanji spelling; also rare.
Compound of 弦 (つる, 'string, bowstring') and 鋸 (のこ, 'saw'), referring to the tensioned blade. The exact origin is uncertain, but it likely describes the saw's resemblance to a bow.