Where does “lên tiếng” come from?

lên tiếng (Vietnamese) comes from Vietnamese lên, from French laine, from Middle French laine, from Old French lainne, from Latin lāna, from Proto-Indo-European h₂wĺ̥h₁neh₂, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

lên tiếng (Vietnamese): to raise one's voice; to speak up

Definitions

to raise one's voice; to speak up

Ancestry of “lên tiếng”, step by step

lên tiếng traces back through two separate lines of ancestry.

via Vietnamese lên

Step	Language	Word	Meaning
1	Vietnamese	lên	to go up, come up, rise; to be or reach a certain...
2	French	laine	wool
3	Middle French	laine	—
4	Old French	lainne	—
5	Latin	lāna	wool
6	Proto-Indo-European	h₂wĺ̥h₁neh₂	wool
7	Proto-Indo-European	-nós	Creates verbal adjectives from roots

via Vietnamese tiếng

Step	Language	Word	Meaning
1	Vietnamese	tiếng	voice; sound; language
2	Middle Chinese	聲	sound, voice

Every word from Proto-Indo-European -nós →Every word from Proto-Indo-European h₂wĺ̥h₁neh₂ →Every word from Latin lāna →