AUTHORISATION

\ˌɔːθɔːɹa͡ɪzˈe͡ɪʃən], \ˌɔːθɔːɹa‍ɪzˈe‍ɪʃən], \ˌɔː_θ_ɔː_ɹ_aɪ_z_ˈeɪ_ʃ_ə_n]\
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1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.