Where does “thứ hai” come from?

thứ hai (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.

thứ hai (Vietnamese): second; Monday

Definitions

  1. second; Monday

Ancestry of “thứ hai”, step by step

thứ hai 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 thứ

StepLanguageWordMeaning
1Vietnamesethứinferior in quality, second, second vice, under;...
2Chineseneck
3Proto-Sino-Tibetan*qV-luʔhead

Words derived from “thứ hai

Every word from Proto-Indo-European ḱey-Every word from Proto-Indo-European ḱóymosEvery word from Proto-Germanic haimaz