Where does “negotiandus” come from?

negotiandus (Latin) comes from Latin negotior, from Latin negōtium, from Latin nec, from Latin neque, from Proto-Indo-European nekʷe, from Proto-Indo-European ne — not.

Definitions

Ancestry of “negotiandus”, step by step

Step	Language	Word	Meaning
1	Latin	negotior	I do business; I act as banker; I trade, traffic
2	Latin	negōtium	business, employment, occupation, affair
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 →