perd- / Indo-European roots
a. fart from Old English *feortan, to fart, from Germanic *fertan, *fartōn;
b. Perhaps futz perhaps from partial translatation and alteration of Yiddish (arum)fartsn (zikh), to fart (around), from Middle High German varzen, to fart. Both a and b from Germanic *fertan, *fartōn.
2. partridge from Greek perdix, partridge (which makes a sharp whirring sound when suddenly flushed).
[Pokorny perd- 819.]