English
heterosubstrate
From hetero- + substrate.
Formed from hetero- + substrate
Proto-Indo-European *sem- ‘one, whole’
Proto-Indo-European *sḿ̥teros
Proto-Hellenic *hə́teros
Ancient Greek ἕτερος ‘other, another, different’
English hetero-
Today it means
noun A heterogeneous substrate
Language periods are conventional ranges, not dates for this word.
Etymograph / heterosubstrate