népszersítette
Népszersítette is the past tense form of the Hungarian verb népszerűsít, meaning to popularize or to make something popular. The standard spelling in Hungarian is népszerűsítette, which is used for the third person singular in the past definite tense. The form you provided, népszersítette, can occur as a diacritic-free variant or as a common misspelling in contexts where diacritics are omitted.
Etymology and meaning: népszerűsít is built from népszerű (popular) with the causative suffix -sít, indicating the
Usage: As a transitive verb, népszerűsít takes a direct object representing what is being popularized. Examples
See also: népszerűsítés (noun, the act of popularizing). The concept is central to strategies in marketing, communications,