Meaning

noun emergence during embryonic development of various characters or structures that appeared during the evolutionary history of the strain or species

originProbably a variant of palingenesia + -genesis (suffix meaning ‘origin; production’). Palingenesia is a learned borrowing from Late Latin palingenesia (“rebirth; regeneration”), from Koine Greek παλιγγενεσία (palingenesía, “rebirth”), from Ancient Greek πᾰ́λῐν (pắlĭn, “again, anew, once more”) (ultimately from Proto-Indo-European *kʷel- (“to turn (end-over-end); to revolve around; to dwell,…

Etymology from Wiktionary, CC BY-SA 3.0