The Thracian word puis
Word puis
Meaning child, son
See also Cappadocian Greek: πούλουπα ‘child, offspring’
Greek: -πουλος ‘offspring of, son of’
Proto-Indo-European: *pau- ‘small’
Thracian: puris/poris ‘son, boy’
Old Persian: pa-u-ça ‘son’
Synonyms pa(i)vis, per, pes

Other words that might be of interest
bur ‘man’, buris ‘man’, kenthas ‘a child, descendant’, suchis ‘girl’, zelmis ‘descendant, an offspring’, goni ‘woman, wife’