Where does “ᦶᦓᦰᦓᧄ” come from?

ᦶᦓᦰᦓᧄ (Lü) comes from Thai แนะนำ, from Thai นำ — to lead; to bring.

ᦶᦓᦰᦓᧄ (Lü): to advise; to guide; to suggest; to recommend