Fart
来自Big Physics
Old English (recorded in the verbal noun feorting ‘farting’) of Germanic origin; related to German farzen, furzen .
wiktionary
From Middle English ferten, farten, from Old English feortan, from Proto-Germanic *fertaną, from Proto-Indo-European *perd-.
The noun is from Middle English fert, fart, from the verb.
etymonline
fart (v.)
Old English feortan, ultimately from PIE *perd- (source also of Old High German ferzan, Old Norse freta, Danish fjerte, Sanskrit pard, Greek perdein, Lithuanian perdžiu, persti, Russian perdet), of imitative origin. Related: Farted; farting. As a noun, from late 14c.
Clatterer or clatterfart, which wyl disclose anye light secreate. [Richard Huloet, "Abecedarium Anglo-Latinum," 1552]