It is now the time of night where I go full-linguist-nerd on everybody.
But in relation to that ship you like, so there’s that.
Enjolras is, according to Brick!canon (which, take that sentence as you will) from the South of France. So he’d likley be from the region where they speak Occitan (langue d’oc; it’s a Romance language related to, but actually, French, it’s fucking awesome). So I headcanon that at’d speak Meridional French, which the kind of French heavily by Occitan (as compared to “standard” Parisian French). Basically, the boy has a Southern accent that he refuses to give up.
And that he actually speaks Occitan. Mostly when he’s pissed off
And (this bit would admittedly work better in modern AU, but) one day, he’s ranting in Occitan, and all of sudden Grantaire replies in the same language, and Enjolras just stops, since he’s never met anybody else in Paris who speaks it.
Technically, all the Amis except Bossuet are from the South, so they all speak it, except him. So Joly tries to teach him.
(Now say Awwwwww)
Unpopular opinion: I kinda love Bring it On the Musical.