source language
noun
the language in which a text appears that is to be translated into another language.
Compare target language(def 1).
a language, usually the learner's native language, that is a source of interference in learning another language.
Compare target language(def 2).
Origin of source language
First recorded in 1955–60
Words nearby source language
source,
source amnesia,
source book,
source code,
source document,
source language,
source material,
source program,
sourcing,
sourdine,
sourdough