From Proto-Tai *trwaːmᴬ (“to carry on the back”). Cognate with Thai หาม (hǎam), Northern Thai ᩉᩣ᩠ᨾ, Lao ຫາມ (hām), Lü ᦠᦱᧄ (ḣaam), Tai Dam ꪬꪱꪣ, Shan ႁၢမ် (hǎam), Zhuang ram, Saek หร่าม.
raaml