aheh-of a snake; iva-like; payah-with milk; posah-the maintaining; posakasya-of the maintainer; api-even; anartha-against the interest; bhrt-becomes; venah-King Vena; prakrtya-by nature; eva-certainly; khalah-mischievous; sunitha-of Sunitha, Vena's mother; garbha-the womb; sambhavah-born of.