Where does “nonumbilical” come from?

nonumbilical (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nonumbilical (English): Not umbilical

Definitions

Not umbilical

Ancestry of “nonumbilical”, step by step

nonumbilical traces back through two separate lines of ancestry.

via English non

Step	Language	Word	Meaning
1	English	non	Obsolete form of none
2	French	non	no; not; a no, a negative response
3	Old French	non	no; not; Alternative form of nom
4	Latin	nōn	not
5	Old Latin	noenum	—
6	Proto-Indo-European	óynos	one; single

via English umbilical

Step	Language	Word	Meaning
1	English	umbilical	Of, or relating to, the navel or the umbilical...
2	English	-al	Of or pertaining to. Adjectival suffix appended...
3	Latin	-alis	Used to form adjectives of relationship from...
4	Proto-Indo-European	-li-	—

Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →