Where does “abovementioned” come from?

Above comes from Middle English aboven, Old English ābufan, combining Old English a with Proto-Germanic bi and ultimately tracing to Proto-Indo-European roots h₂eyu-, ki-, and key-.

abovementioned (English): mentioned above

Definitions

  1. mentioned above

Ancestry of “abovementioned”, step by step

abovementioned traces back through two separate lines of ancestry.

via English above

StepLanguageWordMeaning
1EnglishabovePhysically over; on top of; worn on top of, said...
2Middle Englishabovenabove
3Old Englishābufanabove
4Old Englishbufanabove
5Proto-West Germanic*biobanā
6Proto-West Germanic*obanāfrom above
7Proto-Germanicubanēfrom above
8Proto-Germanicuppup, upwards
9Proto-Germanicubunder
10Proto-Indo-Europeanupóunder, below
11Proto-Indo-Europeanh₃ewp-

via English mentioned

StepLanguageWordMeaning
1Englishmentionedsimple past tense and past participle of mention
Every word from Proto-Indo-European h₃ewp-