Where does “tin cậy” come from?

tin cậy (Vietnamese) comes from Vietnamese cây, from Proto-Vietic gəl, from Proto-Mon-Khmer (d)kər — tree; plant; tree, plant.

tin cậy (Vietnamese): to trust; to put confidence (in); to rely on

Definitions

  1. to trust; to put confidence (in); to rely on

Ancestry of “tin cậy”, step by step

tin cậy traces back through two separate lines of ancestry.

via Vietnamese cây

StepLanguageWordMeaning
1Vietnamesecâytree; plant; Short for cây số
2Proto-Vieticgəl—
3Proto-Mon-Khmer(d)kərtree; plant; tree, plant

via Vietnamese tín

StepLanguageWordMeaning
1Vietnamesetíntrust; honesty
2Chinese信—
Every word from Proto-Mon-Khmer (d)kər →Every word from Proto-Vietic gəl →Every word from Vietnamese cây →