Where does “seventysomething” come from?

seventysomething (English) comes from English -something, from English something, from Middle English somþyng, from Old English sum, from Proto-West Germanic *sum, from Proto-Germanic sumaz, from Proto-Indo-European sem- — together, one.

seventysomething (English): An indeterminate value between 70 (inclusive) and 80 (exclusive)

Definitions

  1. An indeterminate value between 70 (inclusive) and 80 (exclusive)

Ancestry of “seventysomething”, step by step

StepLanguageWordMeaning
1English-somethingIndicating approximation, as in a range of...
2EnglishsomethingAn uncertain or unspecified thing; one thing; A...
3Middle Englishsomþyngsomething
4Old Englishsumsome
5Proto-West Germanic*sumsome
6Proto-Germanicsumazsome (one), a certain (one)
7Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European sem-Every word from Proto-Germanic sumazEvery word from Proto-West Germanic *sum