1653, "able to pay all one owes," from Fr. solvent, from L. solventem (nom. solvens), prp. of solvere "loosen, dissolve" (see solve). Noun meaning "substance able to dissolve other substances" first recorded 1671.
Main Entry: 1sol·vent Pronunciation: 'säl-v&nt, 'sol- Function: adjective : that dissolves or can dissolve <solventfluids> <solvent action of water>
Main Entry: 2solvent Function: noun : a substance capable of or used in dissolving or dispersing one or more other substances; especially: aliquid component of a solution present in greater amount than the solute solvent for many salts, alcohol for many resins, and ether for fats>