Reflections of non-standard consonantism

Palatalization of velars before /a/

The pronunciation of /#k, #g/ as [kj, gj] before /a/ had a brief vogue in standard forms of English in the seventeenth century. It still occurs in a recessive form in scattered dialects in England, and is also frequent in English-lexifier creoles in the Caribbean. As far as London English is concerned, the Survey of English Dialects recorded it for Cockney in Hackney, E. London in the word cabbage: [k^jæbɪʤ].

The further change of /kja, gja/ to /ʧa, ʤa/ can be associated with a change in the substrate.