Where does “submarinist” come from?

submarinist (English) comes from English submarine, from English Marine, from Middle English marin, from Middle French marin, from Old French marin, from Latin marīnus, from Ancient Greek Μαρῖνος, from Latin marinus — adjectival suffix.

Ancestry of “submarinist”, step by step

submarinist traces back through two separate lines of ancestry.

via English submarine

StepLanguageWordMeaning
1EnglishsubmarineUndersea; Hidden or undisclosed; Of a pitch,...
2EnglishMarineOf, or pertaining to, a marine corps; A member of...
3Middle EnglishmarinThe seaside; the coast
4Middle Frenchmarinmarine
5Old Frenchmarinmarine
6Latinmarīnusmarine; of or pertaining to the sea
7Ancient GreekΜαρῖνοςknown from the ancient Roman and Byzantine Periods
8Latinmarinusmarine; of or pertaining to the sea
9Latin-inusOf or pertaining to; -ine
10Proto-Italic-īnosof/belonging to
11Proto-Indo-European-iHnosCreates adjectives of materials
12Proto-Indo-European-no-adjectival suffix

via English ist

StepLanguageWordMeaning
1EnglishistA practitioner or supporter of an ism
2English-istAdded to words to form nouns denoting
3Old French-iste
4Latin-ista-ist; one who practises or believes
5Ancient Greek-ιστήςAlternative form of -τής; -ist
6Ancient Greek-τήςAppended to verbs to form agent nouns
7Proto-Hellenic-tās
Every word from Proto-Indo-European -no-Every word from Latin -inusEvery word from Latin marīnus