-l + -at, created during the Hungarian language reform which took place in the 18th-19th centuries. The neologists popularized it based on verbs ending in -l and further derived with -at/-et. 
- (noun suffix) Added to different parts of speech to form a noun.
- magas (“tall”) → magaslat (“elevation”)
- (noun suffix) Harmonic variants:
- -lat is added to a back vowel word
- -let is added to a front vowel word
- ^ Gábor Zaicz, Etimológiai szótár: Magyar szavak és toldalékok eredete, Tinta Könyvkiadó, 2006, ISBN 963 7094 01 6