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Plants & CreaturesGreekEnglish

Ontogeny

/ɒnˈtɒdʒəni/noun

The development of an individual organism from fertilised egg to adult form.

The Greek roots

ὄν
ón
being, that which is
+
γένεσις
génesis
origin, coming into being

Literally: the coming-to-be of a being

The story of the word

Ernst Haeckel built the German Ontogenie in 1866 as the partner of phylogeny, then compressed both into his slogan that ontogeny recapitulates phylogeny. Biologists spent the next century dismantling that claim; the two words outlived it. The first half is a participle of einai, to be, the same piece standing inside ontology.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
19th century

Same family

phylogenyontologygenesisbiogenesis

In a sentence

The paper tracks skull shape through the whole ontogeny of the species, from hatchling to adult.

Built on the same root

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