The reconstruction of pr *mi a 'body, flesh, meat' and its comparison with Japanese mu- ~ mï 1.1 'body' is rather straightforward. Though the two are traditionally thought to be distinct words, this is clearly the same word as oj mï 'fruit, seed, kernel, pulp,' which also belongs to class 1.1. We thus need to reconstruct only one pj word here: *mui 1.1 'body, flesh, meat, soft tissue underneath the skin or shell of animals and fruits.'
Source: wiktionary