English
heterotriplex
From hetero- + triplex.
Proto-Indo-European *sem- ‘one, whole’
Proto-Indo-European *sḿ̥teros
Proto-Hellenic *hə́teros
Ancient Greek ἕτερος ‘other, another, different’
English hetero-
Proto-Indo-European *tréyes ‘three’
Proto-Italic *trejes
Proto-Italic *trēs ‘three’
Latin trēs ‘three’
Latin triplex ‘triple, threefold’
English triplex
Today it means
noun A triplex DNA strand derived from different parent molecules.
Language periods are conventional ranges, not dates for this word.
Etymograph / heterotriplex