Adueñaste comes from the verb adueñarse, meaning "to take possession of" or "to take over." It's a strong verb that implies a complete and often forceful appropriation.
In "Libérame," Manuel Medrano uses this word to express how his lover completely dominated his ideals and even his connection to God, singing "Te adueñaste de mis ideales, me alejaste de Dios." It powerfully conveys a sense of lost control and emotional subjugation, making it a compelling word to explore.
Manuel Medrano and Leo Rizzi open with a real question, not a metaphor: "¿Quién sabe cómo arreglar un corazón?" [Who knows how to fix a heart?]. That line is basically the whole song: a guy who's out of ideas for repairing what a bad relationship broke, so instead of forcing an answer, he just asks to be let go. He rules out anything gentle working, not birdsong, not the smell of a flower, and gets specific about the betrayal too: "Tú borraste todos nuestros planes y yo como un idiota soñando con vos" [You erased all our plans, and I, like an idiot, dreaming of you]. She moved on while he was still building a future around her.
The chorus is a plea, not a demand: "Libérame, libérame... No me confundas con tus labios" [Free me, free me... Don't confuse me with your lips]. He knows one more kiss undoes whatever progress he's made, so he's asking her to stop being kind to him on the way out. By the second verse he's rehearsing the goodbye speech and still can't find the words, and the song keeps circling back to that same one-word chorus, "Libérame," because apparently saying it once wasn't enough.