Where does “spiriferous” come from?

spiriferous (English) comes from English ous, from English ou, from Afrikaans ou, from Dutch oud, from Middle Dutch out, from Old Dutch ald, from Proto-West Germanic ald, from Proto-Germanic aldaz — to grow, nourish.

spiriferous (English): Of or relating to spirifers

Definitions

  1. Of or relating to spirifers

Ancestry of “spiriferous”, step by step

spiriferous traces back through two separate lines of ancestry.

via English ous

StepLanguageWordMeaning
1Englishousplural of ou
2EnglishouA probably extinct species of Hawaiian...
3AfrikaansouAn old fellow, guy, bloke; attributive form of...
4Dutchoudold
5Middle Dutchoutold
6Old Dutchald
7Proto-West Germanicaldold
8Proto-Germanicaldazold, grown up
9Proto-Indo-Europeanh₂eltós
10Proto-Indo-Europeanh₂él-to grow, nourish

via English spirifer

StepLanguageWordMeaning
1EnglishspiriferAny of numerous species of fossil brachiopods of...
2Latinferōto bear; to carry
3Proto-Italicferōcarry, bear
4Proto-Indo-Europeanbʰéretito be carrying
5Proto-Indo-Europeanbʰēr-shiny, light brown
Every word from Proto-Indo-European h₂él-Every word from Proto-Indo-European h₂eltósEvery word from Proto-Germanic aldaz