Where does “Ponomarenko” come from?

Ponomarenko (English) comes from Ukrainian Пономаре́нко, from Ukrainian е́нко.

Ancestry of “Ponomarenko”, step by step

StepLanguageWordMeaning
1UkrainianПономаре́нко
2Ukrainianе́нко
Every word from Ukrainian е́нкоEvery word from Ukrainian Пономаре́нко