Where does “elfelejtjük” come from?

elfelejtjük (Hungarian) comes from Hungarian elfelejt, from Hungarian el-, from Hungarian -ső, from Hungarian -s — Added to a noun to form an adjective meaning...

Ancestry of “elfelejtjük”, step by step

Step	Language	Word	Meaning
1	Hungarian	elfelejt	to forget
2	Hungarian	el-	indicates actions whose direction is pointing...
3	Hungarian	-ső	Added to a noun or a stem to form an adjective
4	Hungarian	-s	Added to a noun to form an adjective meaning...

Every word from Hungarian -s →Every word from Hungarian el- →Every word from Hungarian -ső →