Pow
来自Big Physics
late 19th century (originally US): imitative.
wiktionary
Onomatopoeic.
Variant forms.
etymonline
pow
expression imitative of a punch, shot, collision, etc., by 1881, originally American English (Joel Chandler Harris).
POW (n.)
also P.O.W., initialism (acronym) for prisoner of war, coined 1919 but not common until World War II.
