Envenena is the Spanish verb for 'she poisons'. It's a dramatic and powerful word that you won't hear in just any song.
In this track, Alvaro Soler sings, "aunque ella me envenena, sé que vale la pena" (even though she poisons me, I know it's worth it). He uses this strong metaphor to describe a love that is so intoxicating and addictive, it feels like a beautiful poison he's willing to take. This poetic use makes it a truly captivating word to learn.
Alvaro Soler has a huge problem in this song, and her name is "Ella" [Her]. He's completely obsessed with a woman who has an almost dangerous power over him. He says that when she's near, "Se me olvida el pasado" [I forget the past], and the way she moves makes him feel sick with love. It's a total, all-consuming crush.
But here's the twist: he knows this isn't entirely healthy. He sings, "aunque ella me envenena / Sé que vale la pena" [even though she poisons me / I know it's worth it]. He's fully aware that this attraction is bad for him, but he's so addicted to her presence that he'd do anything for just one more minute. The whole song is a desperate plea, repeating over and over that he only lives for her and wishing "si solo supiera" [if she only knew] how crazy she drives him.