substratal
Of or pertaining to a substratumOf or pertaining to a substratum.
Meaning
2 senses(not comparable)Of or pertaining to a substratum.
(not comparable)Specifically, pertaining to a substrate language.
Origin
From substrate + -al, substratum + -al.From substrate + -al, substratum + -al.
Wiktionary, CC BY-SA 4.0 · source