Where does “đĩa quang” come from?

đĩa quang (Vietnamese) comes from Vietnamese đĩa, from Chinese 碟, from Middle Chinese 疊 — to fold.

đĩa quang (Vietnamese): optical disc

Definitions

  1. optical disc

Ancestry of “đĩa quang”, step by step

đĩa quang traces back through two separate lines of ancestry.

via Vietnamese đĩa

StepLanguageWordMeaning
1Vietnameseđĩaa plate, a dish, a saucer, etc; a disc, a disk,...
2Chinese碟—
3Middle Chinese疊to fold

via Vietnamese quàng

StepLanguageWordMeaning
1Vietnamesequàngnonsensical, absurd; indiscriminate; to put on,...
2Chinese廣—
Every word from Middle Chinese 疊 →Every word from Chinese 碟 →Every word from Vietnamese đĩa →