Erda rhymes with:
cerda, delacerda, herda, serda, verda, arda, boarda, boorda, borda, burda, carda, cerda, corda, delacerda, garda, gorda, herda, korda, lasorda, leonarda, lugarda, luguarda, matagorda, narda, noorda, roorda, serda, skarda, verda, warda
Erda sounds like:
eared, earhart, earth, eartha, earthy, earwood, ehret, ehrhard, ehrhardt, ehrhart, erhard, erhardt, erhart, erode, eroded, erred, errett, erte, ertha, erudite, ewart, ewert