Fromez(“this”) +előtt(“before”).
ezelőtt
Similar compounds are written as one word (in solid) when they function as adverbs or parts of a conjunction. However, if they emphatically point at something particular (“without/around/behind/etc. that person/object”), they are written with a space inside. More information:Section 121 in A magyar helyesírás szabályai, 12. kiadás (’The Rules of Hungarian Orthography, 12th edition’). Budapest: Akadémiai Kiadó, 2015.→ISBN
ezelőtt
1 This group of adverbs is often understood for humans when in an emphatic position.
In an unstressed position, they may also imply objects, always depending on context.
2 Adverbs ending in-á/-é may coincide with postpositions.[edit this template]