Where does “IBMese” come from?

IBMese (English) comes from English ese, from Mexican Spanish ese, from Latin ipse, from Proto-Italic *e(s)peso — himself, herself, itself.

IBMese (English): The jargon used within the IBM computer company

Definitions

  1. The jargon used within the IBM computer company

Ancestry of “IBMese”, step by step

IBMese traces back through two separate lines of ancestry.

via English ese

StepLanguageWordMeaning
1Englishesedude, man
2Mexican SpanisheseThe name of the Latin-script letter S; that;...
3Latinipsehimself, herself, itself, the very, the actual;...
4Proto-Italic*e(s)pesohimself, herself, itself

via English IBM

StepLanguageWordMeaning
1EnglishIBMIntercontinental ballistic missile; A company...
Every word from Proto-Italic *e(s)pesoEvery word from Latin ipseEvery word from Mexican Spanish ese
IBMese — Etymology, Origin & Word History | Etymology Explorer