soluto
Soluto is a term used in chemistry to denote the substance dissolved in a solution. The substance doing the dissolving is the solvent, and together they form a solution. In English, the standard term for the dissolved substance is solute; soluto is the equivalent term in several Romance languages, notably Italian and Spanish, where it labels the component dissolved in a solution.
The word derives from Latin solutus, meaning loosened or freed, through the noun solutio. In technical writing,
Soluto is also used as the proper name of a technology company that produced PC optimization software