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Oxytocin

/ˌɒksɪˈtoʊsɪn/noun

A hormone produced in the hypothalamus that triggers uterine contraction and milk ejection, and shapes social bonding.

The Greek roots

ὀξύς
oxús
sharp, swift
+
τόκος
tókos
childbirth

Literally: swift birth

The story of the word

Henry Dale named it in 1906 for the one thing he could see it do: speed up labour. The bonding and trust literature arrived seventy years later, which is why the popular nickname has nothing to do with the actual word. Tokos also meant interest on a loan, money giving birth to money, a pun Aristotle used to condemn usury.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
1906

Same family

oxygenoxymorontocologyparoxysm

In a sentence

The midwife hung a syntocinon drip, the synthetic form of oxytocin.

Headlines call it the cuddle hormone, which oversells forty years of mixed results.

Built on the same root

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