How does linguistic borrowing lead to etymological divergence?

Linguistic borrowing occurs when a recipient language adopts a word from a donor language. This process can create etymological doublets, where words sharing a single ancestral root diverge significantly in form and meaning due to separate evolutionary paths or distinct periods of borrowing. Over time, popular usage and reinterpretation can further alter loanwords through folk etymology, creating additional divergence.

What we know

• Doublets are words in a given language that originate from the same etymon, but many English doublets resulted specifically from the borrowing of related words from other languages. [3]
• A loanword is a word at least partly assimilated from a donor language into a target language through the process of borrowing. [4]
• Folk etymology involves a change in a word or phrase resulting from the replacement of an unfamiliar form by a more familiar one through popular usage, frequently affecting loanwords. [5]
• Etymological origins can generate multiple competing proposals, some of which are morphologically defensible while others rely on inadequate linguistic understanding. [2]

Still open

• There are numerous proposed etymological origins for the term carioca, with disagreements among scholars regarding which interpretations are admissible based on Tupi grammar and primary historical sources.

Where to go next

• how it workedWhat are linguistic doublets and how do they form?
• compared withHow do loanwords differ from calques and cognates?
• the bigger pictureWhat is folk etymology in historical linguistics?
• a case in pointHow did the demonym carioca originate in Brazil?
• what followedHow does popular usage change unfamiliar words into familiar ones?
• an unexpected connectionHow do sovereign and soprano share a common root?Despite their vastly different modern forms and meanings, words like sovereign and soprano can be connected through etymological descent.

Sources

• [1]Etymology of carioca (Wikidata Q141535339) · CC0 1.0
• [2]Etymology of carioca · CC BY-SA 4.0
• [3]Doublet (linguistics) · CC BY-SA 4.0
• [4]Loanword · CC BY-SA 4.0
• [5]Folk etymology · CC BY-SA 4.0