Ronge comes from the verb ronger, which literally means "to gnaw" or "to eat away at." It's a vivid and somewhat intense verb that you don't encounter in everyday conversation as frequently as more common verbs.
In the context of the song, Benjamin Biolay uses it metaphorically in the line "Même si ça me ronge" (Even if it gnaws at me). Here, it conveys a deep sense of internal suffering, worry, or regret that is consuming him, much like something physically gnawing away. This powerful imagery makes it a memorable and emotionally charged word.
This song, "Même Si Tu Pars" by Benjamin Biolay, feels like a really honest, almost blunt conversation with someone who's about to leave, or maybe already has. The singer keeps repeating, "Même, même si tu pars" [Even, even if you leave], and it's like he's trying to brace himself for it, or maybe convince himself he'll be okay. He tells the other person, "Prends bien soin de toi / Ne t'en fais pas pour moi" [Take good care of yourself / Don't worry about me], which sounds sweet, but then there's this underlying tension.
What's really interesting is how he swings between this selfless concern and a very human jealousy. He says, "Même si ça me ronge" [Even if it eats away at me], acknowledging the pain. But then, almost out of nowhere, he asks, "Dis moi si tu vois / D'autres garçons / Que moi" [Tell me if you see / Other boys / Than me]. It's a sudden, vulnerable question that cuts through all the bravado. He even admits, "Je t'en voudrais / Tu m'en voudras / C'est comme ça" [I'd resent you / You'd resent me / That's how it is], which is such a realistic take on a breakup. It's not just sad; it's a bit messy and complicated, just like real feelings often are.