Where does “tömeggyilkosok” come from?

tömeggyilkosok (Hungarian) comes from Hungarian tömeggyilkos, from Hungarian tömeg, from Hungarian -ég, from Hungarian -é-, from Hungarian -d, from Middle Welsh -nt — 3rd person plural verb ending.

Ancestry of “tömeggyilkosok”, step by step

StepLanguageWordMeaning
1Hungariantömeggyilkosmass murderer someone who commits a mass murder
2Hungariantömegcrowd, mass; mass
3Hungarian-égAdded to a stem - often an onomatopoeia - to form a verb expressing a (quickly) repeating or continuous action
4Hungarian-é-
5Hungarian-dyour; Used in the second-person singular definite...
6Middle Welsh-nt3rd person plural verb ending
Every word from Middle Welsh -ntEvery word from Hungarian -dEvery word from Hungarian -ég