Sorry I can't help you with the name of "Ondra" as an African-American name. I can tell you, however, that "Ondra" is a Czech form of "
Andrew ".
If you'd like to consider an anagram of your name and your fiance's name for your future child's name, here are some suggestions:
ERICA + ONDRA =
BOYS
Deric
AaronEdric AaronOrian Cedar
Darrion
AceRiordan
AceRicardo Ean
Cairo
AndreArian Corde
Arien
DracoEinar
Draco
GIRLS
Darcie
NoraDarcie Rona
Derica
NoraDerica Rona
Derrica
OnaCera Dinora
Cera
OrindaCierra Dona
Ceri Adorna
Dora CarineNordica
RaeCorina Dare
Dara Corine
Cara Dorine
Cindra Orea
--
Nanaea