ID aka Identic (Latin idem) - "the same"...off-spring implies differentiation. Birth implies coming out of origin and into being aka out of same and into difference. Father through mother into child...a differentiation/separation/setting apart from one another.

IDENTIC (same) FICA (fruit) TION (action)...fruit of action (inception towards death) implies reactions (life) aka cause generating effects aka loss generating growth aka whole generating partials etc.