Where does “hại não” come from?

hại não (Vietnamese) comes from Vietnamese hái, from English Hi, from English high, from Middle English heigh, from Old English hēah, from Old English hām, from Proto-West Germanic haim, from Proto-Germanic haimaz — to be lying down; to settle.

hại não (Vietnamese): harmful for one's brain

Definitions

  1. harmful for one's brain

Ancestry of “hại não”, step by step

hại não traces back through two separate lines of ancestry.

via Vietnamese hái

StepLanguageWordMeaning
1Vietnameseháito pluck a plant or piece of fruit for later...
2EnglishHia short form of Hiram
3EnglishhighElevated, extending above a base or average...
4Middle Englishheighhigh; Alternative form of hey; Alternative form...
5Old Englishhēahhigh, tall, lofty, high-class, exalted, sublime,...
6Old Englishhāmhome; village, community; village, hamlet, manor,...
7Proto-West Germanichaimhome
8Proto-Germanichaimazhome; house; village
9Proto-Indo-Europeanḱóymosof the home, belonging to the family; village,...
10Proto-Indo-Europeanḱey-to be lying down; to settle

via Vietnamese não

StepLanguageWordMeaning
1Vietnamesenãobrain, cerebrum
2Chinese
3Proto-Sino-Tibetans-nəw-kbrain
Every word from Proto-Indo-European ḱey-