taru-adjective, adverb taking the 'to' particle
rustling; murmuring; whistling; soughing
Literary onomatopoeic word describing the sound of wind, often used with と (to) as an adverb. Rare in modern Japanese; more common equivalents include さわさわ or そよそよ.
One can hear the rustling sound of the wind.
The trees murmur with a rustling sound.
Alternate kanji spelling without the repetition mark; less common than 颯々.
Reduplicated form of the kanji 颯 (satsu), meaning 'rustling of wind'. The reading さっさつ is a geminated reduplication. The exact historical derivation is uncertain, but it follows a pattern of literary onomatopoeic expressions.