| basilect |
| Definition: In a post-Creole community, it is the dialect that most closely resembles the creole. It is also the lowest register of a spoken language. |
| Etymology: The term was coined by Derek Bickerton by — I would guess — joining the combining form basi, base, with the word dialect. |
| Oxford English Dictionary: Its first citation is from 1977: "Speakers in a post-creole community are triply pressured: to avoid the basilect, to acquire the acrolect, and to vary the mesolect." (Language LIII. 330) |