Try languages from outside Eurasia. K'iche (Mayan): chuch, qajaw Mam (Mayan): txu, man Kaurna (Pama-Nyungan): ngangkita, yarlita Gurindji (Pama-Nyungan): ng

Try languages from outside Eurasia. K'iche (Mayan): chuch, qajaw Mam (Mayan): txu, man Kaurna (Pama-Nyungan): ngangkita, yarlita Gurindji (Pama-Nyungan): ngamayi, ngaji I doubt there are any words meaningfully conserved across all languages. That sort of thing would be the holy grail of phylolinguistics and a lot of very smart people have spent good chunks of their lives turning up nothing of the sort.