Where does “唐萵苣” come from?

唐萵苣 (Japanese) comes from Japanese 唐, from Japanese 伽羅, from Sanskrit कालागुरु.

Ancestry of “唐萵苣”, step by step

唐萵苣 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japaneseforeign lands in general; element in compounds,...
2Japanese伽羅the Gaya confederacy: a grouping of smaller states on the southern end of the Korean peninsula, roughly dating to 42-532
3Sanskritकालागुरु

via Japanese 萵苣

StepLanguageWordMeaning
1Japanese萵苣
Every word from Sanskrit कालागुरुEvery word from Japanese 伽羅Every word from Japanese