Where does “jogleur” come from?

jogleur (Old French) comes from Medieval Latin ioculator, from Latin iocus, from Proto-Italic jokos, from Proto-Indo-European yokos, from Proto-Indo-European yek- — to utter.

Ancestry of “jogleur”, step by step

Step	Language	Word	Meaning
1	Medieval Latin	ioculator	one who jokes; a joker, jester
2	Latin	iocus	a joke, jest; a form of amusement; pastime, sport
3	Proto-Italic	jokos	word, saying
4	Proto-Indo-European	yokos	word, utterance
5	Proto-Indo-European	yek-	to utter

Every word from Proto-Indo-European yek- →Every word from Proto-Indo-European yokos →Every word from Proto-Italic jokos →