English

heterokurtosis

From hetero- + kurtosis.

Proto-Indo-European *sem- ‘one, whole’

Proto-Indo-European *sḿ̥teros

Proto-Hellenic *hə́teros

Ancient Greek ἕτερος ‘other, another, different’

Ancient Greek κυρτός ‘bulging, convex’

Ancient Greek κύρτωσις ‘a bulging, convexity’

Today it means

noun The property of a series of random variables of not every variable having the same finite kurtosis

Language periods are conventional ranges, not dates for this word.

Etymograph / heterokurtosis