Where does “legtriviálisabb” come from?

legtriviálisabb (Hungarian) comes from Hungarian triviálisabb, from Hungarian triviális, from Medieval Latin trivialis — common, commonplace, ordinary, trivial.

Ancestry of “legtriviálisabb”, step by step

Step	Language	Word	Meaning
1	Hungarian	triviálisabb	—
2	Hungarian	triviális	trivial
3	Medieval Latin	trivialis	common, commonplace, ordinary, trivial

Every word from Medieval Latin trivialis →Every word from Hungarian triviális →Every word from Hungarian triviálisabb →