Arrogarle comes from the verb arrogar, meaning to arrogate, to claim something for oneself, often without real justification or right to it. It's a formal, less common word than simply saying "to take" or "to claim."
In the song, Darío Gómez sings "Yo no boy arrogarle un apellido a nadie" ("I don't boy arrogate a last name to anyone"), using the word to insist that he has never falsely claimed a family name or identity that wasn't rightfully his.
Darío Gómez's "El Hijo Del Amor" is a powerful anthem about self-worth and the unconditional love of a mother. It's a direct message to anyone who has felt the sting of a father's absence or rejection. Darío sings, "Muchos ser quejan porque los negó su padre A mí también pero, ¿qué culpa tengo yo?" [Many complain because their father denied them Me too, but what fault do I have?]. He makes it clear that a father's presence isn't the only thing that defines you, especially when you have a loving mother.
He celebrates the strength of single mothers, saying, "Muchos critican a una madre soltera Porque se ha dado la libertad y el placer Y aunque esa no tiene un hijo con honores Es muy resuelta para responder por él" [Many criticize a single mother Because she has given herself freedom and pleasure And even if she doesn't have a child with honors She is very determined to answer for him]. It's a blunt and beautiful defense, contrasting them with mothers who marry for duty rather than love. Ultimately, Darío proclaims himself "el hijo del amor" [the son of love], reminding us that everyone deserves life and a beating heart, and we should be grateful for the mother who gives us that love.