English
heterosynthesis
From hetero- + synthesis.
Formed from hetero- + synthesis
Proto-Indo-European *sem- ‘one, whole’
Proto-Indo-European *sḿ̥teros
Proto-Hellenic *hə́teros
Ancient Greek ἕτερος ‘other, another, different’
English hetero-
Proto-Indo-European *dʰeh₁- ‘to put, place’
…
Ancient Greek τίθημι ‘set, place’
Ancient Greek συντίθημι ‘put together, combine’
Ancient Greek σύνθεσις ‘a putting together’
Latin synthesis ‘a collection or reunion of many objects of…’
English synthesis
Today it means
noun The synthesis of components of an egg by one of the parents
Language periods are conventional ranges, not dates for this word.
Etymograph / heterosynthesis