We found one dictionary that defines the word erstwhilea:

General (1 matching dictionary)

1. erstwhilea: Rhymezone

Definitions from WordNet (erstwhilea) ▸ adjective:  belonging to some prior time ▸ Words similar to erstwhilea ▸ Usage examples for erstwhilea ▸ Idioms related to erstwhilea ▸ Wikipedia articles (New!) ▸ Popular nouns described by erstwhilea ▸ Words that often appear near erstwhilea ▸ Rhymes of erstwhilea ▸ Invented words related to erstwhilea