Latin word solutio comes from Latin luo (I expiate.. I pay.. I satisfy.. I suffer.)

Detailed word origin of solutio

Dictionary entry	Language	Definition
luo	Latin (lat)	I expiate.. I pay.. I satisfy.. I suffer.
solvere	Latin (lat)
solutio	Latin (lat)	(figuratively) payment. (figuratively) solution, explanation. The act of loosening or unfastening someone or something; dissolution.. Looseness, weakness.