Etymograph

English

Isocracking

A proprietary name, from iso- + cracking; developed in 1959.

Formed from iso- + cracking

Ancient Greek ἴσος ‘equal’

English iso-

Middle English craken

Middle English crakynge

English cracking

The story

A proprietary name, from iso- + cracking; developed in 1959.

Today it means

noun A process that uses catalysts to rearrange the existing molecules of heavy fuel oils to remove sulfur and convert low-value fuel oils into higher-yield products such as gasoline.

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

Etymograph / Isocracking