ソウ, サッ, はや.い, はや, はや, はや.まる, はや.める, さ, さか, さわ, そ, わ

early, fast

JLPT4 G1 S6 F402

An abbreviated form of (rising sun; morning) → *pre-dawn darkness* → *early morning*; *early* → *move forward* (in time); *fast* → *hasten*; *accelerate*. Also, *rash/hasty* (← hasten). Compare the transition from early morning darkness to the idea of early/fast in .

[Full Kanji Etymology List]