Where does “lax vowel” come from?

lax vowel (English) comes from English lax, from Middle English lax, from Old English leax, from Proto-West Germanic lahs, from Proto-Germanic lahsaz, from Chinese 拉薩, from Tibetan ལྷ་ས, from Old Tibetan ར་ས.

lax vowel (English): A vowel produced with relatively little...

Definitions

  1. A vowel produced with relatively little...

Ancestry of “lax vowel”, step by step

lax vowel traces back through two separate lines of ancestry.

via English lax

StepLanguageWordMeaning
1EnglishlaxA salmon; Lenient and allowing for deviation; not...
2Middle Englishlaxsalmon
3Old Englishleaxa salmon
4Proto-West Germaniclahssalmon
5Proto-Germaniclahsazsalmon
6Chinese拉薩
7Tibetanལྷ་སLhasa
8Old Tibetanར་ས

via English vowel

StepLanguageWordMeaning
1EnglishvowelA sound produced by the vocal cords with...
2Old FrenchvouelAlternative form of voyeul
3Old Frenchvoyeulvowel
4Latinvōcālisuttering a voice, having a voice; speaking, sounding, sonorous, speaking, crying, singing, melodious; vocal
5Latinvōxvoice
6Proto-Italicwōksvoice
7Proto-Indo-Europeanwṓkʷsvoice, speech
8Proto-Indo-Europeanwekʷ-to speak, to sound out
Every word from Old Tibetan ར་སEvery word from Tibetan ལྷ་སEvery word from Chinese 拉薩