Where does “briefcased” come from?

briefcased (English) comes from English ED, from Japanese エンディング, from English ending, from Middle English ending, from Middle English endyng, from Old English endung, from Old English endian, from Proto-Germanic andijōną — on, onto.

briefcased (English): Carrying a briefcase

Definitions

  1. Carrying a briefcase

Ancestry of “briefcased”, step by step

briefcased traces back through two separate lines of ancestry.

via English ED

StepLanguageWordMeaning
1EnglishEDInitialism of erectile dysfunction; Initialism of...
2Japaneseエンディングending, especially of a broadcast or performance
3EnglishendingA termination or conclusion; The last part of...
4Middle EnglishendingAlternative form of endyng
5Middle EnglishendyngAn ending, termination, or conclusion;...
6Old Englishendungending
7Old Englishendianto end, make an end of; to finish, complete; to...
8Proto-Germanicandijōnąto end, bring to an end, finish
9Proto-Germanicandijazend
10Proto-Indo-Europeanh₂entíosfront; forehead
11Proto-Indo-Europeanh₂ent-face; forehead; front
12Proto-Indo-Europeanh₂en-on, onto

via English briefcase

StepLanguageWordMeaning
1EnglishbriefcaseA case used for carrying documents, especially...
2EnglishCaseabstract feature of a noun phrase that determines...
3GermanKäsecheese; nonsense
4Middle High Germankæsecheese
5Old High Germankāsicheese
6Proto-West Germanickāsīcheese
7Proto-Germanickāsijazcheese
8Latincāseuscheese
9Proto-Indo-Europeankwat-to ferment, become sour; to boil
Every word from Proto-Indo-European h₂en-
briefcased — Etymology, Origin & Word History | Etymology Explorer