Where does “trajet” come from?

trajet (French) comes from Italian tragetto, from Latin trāiectus, from Latin trāiciō, from Latin trāditiō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere — small stone, pebble; gravel, rubble.

trajet (French): route, course, trajectory; ride, run

Definitions

route, course, trajectory; ride, run

Ancestry of “trajet”, step by step

Step	Language	Word	Meaning
1	Italian	tragetto	Alternative spelling of tragitto
2	Latin	trāiectus	thrown or hurled (over)
3	Latin	trāiciō	to throw, cast or hurl across or over
4	Latin	trāditiō	a surrender, delivering up
5	Latin	-tiō	tion, -ation, -ing
6	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
7	Latin	dissertus	arranged, disposed; explained
8	Latin	disserere	second-person singular future passive indicative...
9	Latin	dis-	asunder, apart, in two; reversal, removal;...
10	Latin	calceus	shoe
11	Latin	calx	limestone; chalk; the finish line
12	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →