Where does “necesi” come from?

necesi (Esperanto) comes from Esperanto necesa, from Latin necesse, from Latin cessus, from Latin cēdō, from Proto-Italic kedō, from Proto-Italic ke, from Indo-European *ḱe.

necesi (Esperanto): to be necessary

Definitions

to be necessary

Ancestry of “necesi”, step by step

Step	Language	Word	Meaning
1	Esperanto	necesa	necessary
2	Latin	necesse	unavoidable, "particularly"
3	Latin	cessus	conceded, given up, granted, surrendered,...
4	Latin	cēdō	to go, move, proceed, go along, move along
5	Proto-Italic	kedō	give here!
6	Proto-Italic	ke	here
7	Indo-European	*ḱe	—

Every word from Indo-European *ḱe →Every word from Proto-Italic ke →Every word from Proto-Italic kedō →