pidginize
Comparecreolization
"Language mixture" may refer to what linguists call pidginization and creolization of languages.
Pidginization is not merely a phenomenon of the past.
Research into pidginisation and creolisation has grown exponentially over the last 25 years.
SMART Vocabulary: related words and phrases
Forms of languages & specialist dialects
acrolect
argot
basilect
cant
colloquialism
demotic
jargon
jargonistic
journalese
legalese
lingo
lingua franca
patois
pidgin
pidginize
plain English
Polari
psychobabble
shibboleth
vernacularly