subdie
/ˈsʌbdi/ or /ˈsʌbdɪ/ (SUB-dee or SUB-dee)
Definitions
1. noun
A subdialect or a dialect that is considered to be subordinate to a larger dialect or language.
“The linguist spent years studying the subdie of a particular region, comparing its vocabulary and grammar to the standard language.”
2. verb
to subdue or make subject to a dominant dialect or language.
“The dominant language subdie the local dialect, forcing it to adapt to its grammar and syntax.”