English

isotrivial

From iso- + trivial.

Ancient Greek ἴσος ‘equal’

English iso-

Proto-Indo-European *weyh₁- ‘to pursue, be strong’

…

Latin via ‘road’

Latin trivius ‘having three approaches’

Latin trivium ‘place where three roads meet’

Latin triviālis ‘appropriate to the street-corner,…’

Today it means

adj Describing a smooth projective surface having a morphism onto a curve such that all smooth fibres are isomorphic to each other

Language periods are conventional ranges, not dates for this word.

Etymograph / isotrivial