Correct spelling for the English word "mccaughey" is [məkˈɔːɪ], [məkˈɔːɪ], [m_ə_k_ˈɔː_ɪ] (IPA phonetic alphabet).
There is no widely recognized etymology or origin for the word "Mccaughey" because it is a proper noun, specifically a surname. Surnames are typically derived from various sources including personal names, occupations, locations, or descriptive characteristics.
It is likely that the surname "Mccaughey" is of Irish origin, as it follows the pattern of other Irish surnames beginning with "Mc" or "Mac", which means "son of" in Gaelic. However, to determine the exact meaning or origin of the name "Mccaughey", one would need to investigate specific family histories or consult genealogical records.