Kham Mueang Sound Shifts: Why Khu Means Teacher

Kham Mueang sound shifts explain why a northerner reads the sentence written "เรารักโรงเรียน" (rao rak rongrian, "we love our school") aloud as hao hak hong hian. The Moradok Lanna dictionary says so in its entry for the letter ra: in native Lanna words, a written r is pronounced h. There are more pairs like this: ch becomes j, th becomes t, ph becomes p and kh becomes k. A few of them turn the word into a completely different Central Thai word.

The classic joke is khu (ระฯคู). A Central Thai listener hears "ditch" (khu), but a northerner means khru, "teacher": the r in the cluster has dropped out. This lesson gathers the five rules with more than 50 examples from the Moradok Lanna dictionary. Once you know them, you can decode Kham Mueang words you have never heard before.

Why Central Thai ears get confused

Kham Mueang and Central Thai share a great many words, but some sounds do not match. Compare the readings in the dictionary with the Thai forms printed beside them and you find several hundred words that follow each rule, so this is no coincidence.

The trouble starts when a shifted Kham Mueang word happens to match another Central Thai word. Ta that means "to paint on", or pa that means "to take someone along": the listener hears every syllable clearly and still understands something else. These are Kham Mueang false friends, and we point them out under each rule.

Rule 1: r becomes h

The rule you hear most often. Native Kham Mueang words have no rolled r, so r becomes h every time.

Words to listen for carefully

• hu (รู้) with a high tone means "to know", but hu (รู) with a level tone means "hole" (ru). Only the tone is different.
• hot (รอฯด) is matched in the dictionary with Central Thai rot (to survive), but it is used to mean to arrive, to reach a goal. Pai hot laeo means "we've arrived", not "we survived".
• hai (ร้ายฯ) is Central Thai rai, "wicked"; the dictionary defines it as naughty, bad, not good. When an elder calls a child hai tae, the child is simply very naughty.

Rule 2: ch becomes j

Words that Central Thai says with ch are usually pronounced with j by northerners. Province names change too: Chiang Mai becomes Jiang Mai and Chiang Rai becomes Jiang Hai (ชยฯงรายฯ), which uses rules 1 and 2 in a single word.

False friends from ch → j

Jaeng, jao and jang also keep their Central Thai senses in the dictionary, as separate words that happen to be spelled the same, so you have to follow the conversation. A sign saying huean hue jao means "house for rent" (our own example), not "house for the master".

Rule 3: th becomes t

False friends from th → t

For words with the cluster thr, the dictionary says they are read tha-la: song (to hold, to bear) becomes tha-long (ระฯท฿งฯ).

Rule 4: ph becomes p

False friends from ph → p

The most fun pair is pu and pu (ปู) with a rising tone: a northerner calls the betel leaf pu and the rice-field crab pu on a rising tone. In the same way fish (pla) becomes pa (ปลฯา). To say "to give, to share", Kham Mueang uses pan (ปันฯ) on a rising tone, which differs from pan "a thousand" only in tone.

The dictionary also notes that ph with an r cluster keeps its ph sound: phra (monk, holy) is read pha, not pa.

Rule 5: kh becomes k

So a northerner's kang with a falling tone is an animal, the langur, not a fishbone, and kang with a level tone is the chin, not "to spread out".

A tone tip: mai ek becomes mai tho

When you look at Kham Mueang words written in Thai script in the dictionary, the tone marks change in a regular way too. That is because ช ท พ ค are low-class letters in Thai script, while จ ต ป ก are mid-class letters.

By the ordinary Thai tone rules, พ่อ and ป้อ are both read with a falling tone, and ช้าง and จ๊าง are both read with a high tone. Writing them this way lets a Thai-script reader land close to the original sound. The r → h rule needs no change of tone mark, because ร and ฮ are both low-class letters: ร้อน simply becomes ฮ้อน.

Try decoding Kham Mueang

Use the five rules to guess what a northerner says for each Central Thai word below, then open the answers, which are all dictionary headwords.

Play: try the sound shifts

Type a Central Thai word to see which rules apply, or play the guessing game built from real dictionary pairs. The conversion is a rule-of-thumb guess, so always check the real word in the dictionary.

Summary

• Kham Mueang has sound rules that apply to hundreds of words: r → h, ch → j, th → t, ph → p, kh → k.
• Lanna script still writes ร ช ท พ ค; they are simply read differently, not misspelled.
• Many Kham Mueang false friends come from these rules: khu = teacher, ta = to paint on, pa = to take along, pu = betel leaf, juan = to invite, kang = langur.
• There are exceptions: r in names and loanwords is read l; khon and khai keep kh; clusters such as phra and khru keep ph and kh.
• Written in Thai script, mai ek usually becomes mai tho and mai tho becomes mai tri.

Look up the words you decode yourself in the Moradok Lanna dictionary. For more false friends, read Kham Mueang False Friends: Food and Kham Mueang False Friends: Feelings and Health. If you want to start talking with northerners, try Kham Mueang Words Locals Love, and to read the script that writes r but says h, start with Learn Lanna Script.

Sources

• Moradok Lanna dictionary: คู · ฮัก · จ๊าง · ตา · ปู · ก้าง, and the letter entries for ร ฮ ค ท พ
• Udom Rungruangsri. พจนานุกรมล้านนา-ไทย ฉบับแม่ฟ้าหลวง [Lanna–Thai Dictionary, Mae Fah Luang edition], revised edition 1, 2004, p. 922 (quoted in the Moradok Lanna dictionary, letter ฮ)