substratal

adj — 2 senses

adj

Etymology From substrate + -al, substratum + -al.

Of or pertaining to a substratum.

Human sciences, Linguistics, Sciences Specifically, pertaining to a substrate language.

The West African languages that were substratal to most of the Atlantic creoles have regularly overt copulas […].2018, John H. McWhorter, The Creole Debate, Cambridge University Press, page 10:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.