Where does “dopolóny” come from?

dopolóny (Polish) comes from Hungarian -öny, from Hungarian -ö-, from Hungarian -d, from Middle Welsh -nt — 3rd person plural verb ending.

Ancestry of “dopolóny”, step by step

StepLanguageWordMeaning
1Hungarian-önyAdded to a word to form a noun or an adjective
2Hungarian-ö-linking vowel
3Hungarian-dyour; Used in the second-person singular definite...
4Middle Welsh-nt3rd person plural verb ending
Every word from Middle Welsh -nt →Every word from Hungarian -d →Every word from Hungarian -öny →