I recently came upon the Wiktionary page Reconstruction:Proto-Indo-European/tewk- and was struck by the wide semantic divergence involved. The reconstructed meaning is ‘germ, seed, sprout, offspring’ (presumably based on Indo-Iranian *táwkma), but it gives rise to Proto-Germanic *þeuhą ‘thigh’ (see there for further descendants), Proto-Slavic *tȗkъ ‘fat, lard’ (see there for further descendants, including Russian тук ‘fertilizer’), Ossetian тог/туг (tog/tug) ‘blood,’ Irish tón ‘anus’ (whence Pogue Mahone), and Latin tuccetum ‘a kind of sausage made with meat of ox’ (whence Spanish tocino ‘bacon; salt pork’), among many others. Does this seem like trying to cram too much into one word family?