Where does “alapterület” come from?

alapterület (Hungarian) comes from Hungarian alap, from Hungarian ál, from Proto-Uralic ëla — below.

alapterület (Hungarian): surface area, floorspace

Definitions

Step	Language	Word	Meaning
1	Hungarian	alap	base, foundation
2	Hungarian	ál	false, fake, sham, phoney, make-believe, bogus,...
3	Proto-Uralic	ëla	below

alapterület — Etymology, Origin & Word History | Etymology Explorer