PETITIO PRINCIPII

\pɛtˈɪtɪˌə͡ʊ pɹˈɪnsɪpˌɪa͡ɪ], \pɛtˈɪtɪˌə‍ʊ pɹˈɪnsɪpˌɪa‍ɪ], \p_ɛ_t_ˈɪ_t_ɪ__ˌəʊ p_ɹ_ˈɪ_n_s_ɪ_p_ˌɪ__aɪ]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
1910 - Black's Law Dictionary (2nd edition)
By Henry Campbell Black
 
1895 - Glossary of terms and phrases
By Henry Percy Smith