The Thai script
Thai Consonants · ม mo ma

#33 of forty-four · low class

ม

mo ma

ม ม้า · horse

Low class อักษรต่ำ

Low class is the shifted class — the same mark lands a different tone than on mid or high.

Pronunciationinitial /m/
มlooped · print
มloopless · modern
มhandwritten
Initial sound/m/RTGS m · Paiboon m
As finalm · แม่กมcloses a syllable → “dead”
Frequency#6 of 44a day-one letter — you’ll meet it immediately
CodepointU+0E21
ม ม้า (mo ma) — Thai consonant meaning 'horse', engraved specimen plate
ม้า · horse — engraved specimen plate
๑What tone does ม give?class isn’t trivia — it’s the tone engine

A consonant’s class exists for one reason: it decides the tone. Low class is the shifted class — the same mark lands a different tone than on mid or high. Here’s every outcome for ม as the initial:

Syllable– No mark◌่ mái èek◌้ mái thoo
Liveopen or sonorant endmidfallinghigh
Dead · longlong vowel + stopfallingfallinghigh
Dead · shortshort vowel + stophighfallinghigh

Live syllable — open or sonorant end

–No markmid
◌่mái èekfalling
◌้mái thoohigh

Dead · long syllable — long vowel + stop

–No markfalling
◌่mái èekfalling
◌้mái thoohigh

Dead · short syllable — short vowel + stop

–No markhigh
◌่mái èekfalling
◌้mái thoohigh

Change the initial to another class and the same marks produce different tones — that shift is what makes tone a small system, not 44 separate facts. Derive tones on the Tones surface →

๒Easy to mix upby shape, and by sound

Looks like — watch the shape

มmo ma/m/ · low
vs
นno nu/n/ · low

The tell: ม closes into a full round belly-loop on the left; น has an open notch instead of a closed loop.ม is /m/ low · น is /n/ low.

Sounds like — watch the spelling

Same initial /m/:

ม stands alone — no other consonant makes this initial sound, so it’s always ม. One of the easy ones to spell.

Same final /m/ — identical at a word’s end:

ม is the only letter that closes a syllable this way.

๓In real wordsthe letter at work
๔How it’s writtenstart at the head

Start at the head — the little loop — then one continuous stroke. Written between the guide lines, the body sits in the middle band.

๕Where it comes fromorigin & lineage

Indic and native; /m/.

OriginIndic
LineageBrahmi → Khmer → Thai
UnicodeU+0E21
Statusin current use