ROBOREOUS
\ɹə͡ʊbˈɔːɹi͡əs], \ɹəʊbˈɔːɹiəs], \ɹ_əʊ_b_ˈɔː_ɹ_iə_s]\
Sort: Oldest first
2010
- New Age Dictionary Database
By Oddity Software
1913
- Webster's Revised Unabridged Dictionary
By Noah Webster.
1919
- The Concise Standard Dictionary of the English Language
By James Champlin Fernald
