soltar
/solˈtaɾ/ · A2 · verb
to release
🪢 soltar = make suelto (loose); same root as English solve, dissolve
From suelto (loose), which comes from Latin solutus, the past participle of solvere, to loosen. English solve, dissolve and absolve share that root: each one unties something. Soltar is the plain physical version: undo the knot, let it go.