The exact origin of the Aramaic forms cannot be ascertained. The underlying prototype *parpaḫīn- is not compatible with Sumerian {babbar.ḫi} and early Akkadian papparḫû ‘purslane’, but comes very close to the later Akkadian forms (EDA I 392).
Syriac
prpr - to wriggle out; to writhe in death (or death-like) agony
(LSyr. 604, SL 1249)