Where does “questionario” come from?
questionario (Italian) comes from Late Latin quaestionarius, from Latin quaestiōnō, from Latin quaestiō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis- — small stone, pebble; gravel, rubble.
questionario (Italian): questionnaire
Ancestry of “questionario”, step by step