Where does “mastspore” come from?

mastspore (English) comes from English Mast, from French masse, from Old French mace, from Vulgar Latin mattia, from Latin mateola, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos — Forms agent nouns from verbal roots.

Ancestry of “mastspore”, step by step

mastspore traces back through two separate lines of ancestry.

via English Mast

StepLanguageWordMeaning
1EnglishMast
2Frenchmassea paste, a dough; large amount or quantity of...
3Old Frenchmacemace weapon
4Vulgar Latinmattia
5LatinmateolaThe meaning of this term is uncertain....
6Latin-ulusUsed to form a diminutive of a noun, indicating...
7Proto-Italic-olos
8Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
9Proto-Indo-European-e-lós
10Proto-Indo-European-lósForms agent nouns from verbal roots

via English Spur

StepLanguageWordMeaning
1EnglishSpursomeone connected with Tottenham Hotspur FC, as a...
2Middle EnglishspureAlternative form of spore; Alternative form of...
3Old Englishspora
4Proto-West Germanic*spurōspur
5Proto-Germanicspurôspur
6Proto-Indo-Europeansper-to fidget, twitch; to push; to be quick; to...
Every word from Proto-Indo-European -lósEvery word from Latin -ulusEvery word from Latin mateola
mastspore — Etymology, Origin & Word History | Etymology Explorer