Etymograph

English

LogSumExp

Blend of log(arithm) + sum + exp(onential).

A blend of logarithm + sum + exponential

New Latin logarithmus

English logarithm

Proto-Indo-European *upó ‘up; from below’

…

Latin summus ‘highest’

Latin summa ‘highest point’

Old French summe

Middle English summe

English sum

Today it means

noun A smooth maximum used by machine learning algorithms.

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

Etymograph / LogSumExp