Where does “pernegandus” come from?

pernegandus (Latin) comes from Latin pernego, from Latin negō, from Latin nec, from Latin neque, from Proto-Indo-European nekʷe, from Proto-Indo-European ne — not.

Definitions

Ancestry of “pernegandus”, step by step

Step	Language	Word	Meaning
1	Latin	pernego	I deny entirely; I refuse flatly
2	Latin	negō	to deny
3	Latin	nec	nor; and not, not; neither
4	Latin	neque	not; and not, also not
5	Proto-Indo-European	nekʷe	and not, neither, nor
6	Proto-Indo-European	ne	not

Every word from Proto-Indo-European ne →Every word from Proto-Indo-European nekʷe →Every word from Latin neque →