English edit

Etymology edit

From substrate +‎ -al, substratum +‎ -al.

Adjective edit

substratal (not comparable)

  1. Of or pertaining to a substratum.
  2. (linguistics) Specifically, pertaining to a substrate language.
    • 2018, John H. McWhorter, The Creole Debate, Cambridge University Press, page 10:
      The West African languages that were substratal to most of the Atlantic creoles have regularly overt copulas […].