Where does “divemaster” come from?

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

divemaster (English): A person responsible for a group of underwater...

Definitions

  1. A person responsible for a group of underwater...

Ancestry of “divemaster”, step by step

divemaster traces back through two separate lines of ancestry.

via English Master

StepLanguageWordMeaning
1EnglishMasterPrepended to a boy's name or surname as a form...
2EnglishMast
3Frenchmassea paste, a dough; large amount or quantity of...
4Old Frenchmacemace weapon
5Vulgar Latinmattia
6LatinmateolaThe meaning of this term is uncertain....
7Latin-ulusUsed to form a diminutive of a noun, indicating...
8Proto-Italic-olos
9Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
10Proto-Indo-European-e-lós
11Proto-Indo-European-lósForms agent nouns from verbal roots

via English dive

StepLanguageWordMeaning
1EnglishdiveTo swim under water; To jump into water...
2Middle Englishdiven
3Old Englishdūfanto duck, dive, sink, penetrate; to dive
4Proto-West Germanic*dūbanto dive
5Proto-Germanicdūbanąto dive, to sink
Every word from Proto-Indo-European -lós