1) Of very little importance or value; insignificant; commonplace; ordinary.
From M.L. trivialis "found everywhere, commonplace; known by every body," from trivium literally "crossroad, a place where three roads meet," also "the lower division of the seven liberal arts taught in medieval universities, i.e. grammar, rhetoric, and logic," from tri-, → three, + via "road," since it was common in Roman Empire for three roads to meet.
Zab "easy, unbought, gratis; straight," variant zap, related to sabok "light, not heavy; unsteady;" Proto-Iranian *θrap-/tarp- "to be unsteady;" cf. Kurd. terpin "to stumble;" Pashto drabəl "to shake, press down;" Skt. trepa- "hasty;" Gk. trepein "to turn;" L. trepidus "agitated, anxious;" PIE *trep- "to shake, tremble."
Fr.: nom trivial
Chemistry: A common name for a chemical compound derived from the natural source, or of historic origin, and not according to the systematic nomenclature. For example, the trivial name of sodium chloride is → salt.
The quality or state of being → trivial; something trivial.
zabidan, zab kardan
To make → trivial.