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fusion

/ˈfjuːʒən/

The joining or blending of separate things

From Latin fus- / fūsiō (Pouring out).

noun
fus- / fūsiō
Latin
Verified
fūsiōnem (from fūsiō)
“An outpouring, effusion”; an action noun connected with pouring or melting

from Latin fūsiōnem (the accusative of fūsiō)

Middle French
Verified
fusion
“Melting” or “pouring”; borrowed into English

from French fusion or directly

+1 more source
English, c. 1555
AI-inferred
fusion
Originally the act of melting by heat
Modern English
AI-inferred
fusion
Union or blending; later used for nuclear physics, psychology, politics, and music
Modern English
fusion
“

Picture a Roman substance pouring from one vessel into another: Latin fūsiō named that outpouring, and the same family supplied the idea of melting. English encountered fusion through Middle French, with the word first appearing around 1555 in a translation by Richard Eden. For centuries it chiefly meant heat doing its work on metal; only later did it become a grand word for things joining forces, from political parties to atoms and jazz musicians. Nuclear fusion, recorded in this sense by 1947, gives the old image its most spectacular setting: tiny nuclei pouring their identities together while releasing enormous energy. Remember fusion as “pouring until separate things become one”—a vocabulary image that connects a molten workshop to the sun.

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