ร้อน
ron · RTGS: ron
gain heat or get hot, used of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning
มีความรู้สึกตามผิวหนังเหมือนถูกไฟเป็นต้น; มีอุณหภูมิสูง; กระวนกระวาย
Why high tone?
For low-class consonants, Mai Tho produces High tone (opposite of mid/high class!).
What is a live syllable?
Live syllable (ends with a vowel or sonorant consonant like m, n, ng)
About Low-class consonants
Low-class consonants include ค, ฅ, ฆ, ง, ช, ซ, ฌ, ญ, ฑ, ฒ, ณ, ท, ธ, น, พ, ฟ, ภ, ม, ย, ร, ล, ว, ฬ, and ฮ. In live syllables without a tone mark, they produce a mid tone. They behave differently with tone marks compared to mid and high-class consonants.