The Thai script
Thai Consonants · ษ so rusi

#39 of forty-four · high class

ษ

so rusi

ษ ฤๅษี · hermit

High class อักษรสูง

High class + no mark on a live syllable = rising tone; it reaches tones the low twins can't.

Pronunciationinitial /s/
ษlooped · print
ษloopless · modern
ษhandwritten
Initial sound/s/RTGS s · Paiboon s
As finalt · แม่กดcloses a syllable → “dead”
Frequency#28 of 44rarer — mostly in Pali/Sanskrit loans
CodepointU+0E29
ษ ฤๅษี (so rusi) — Thai consonant meaning 'hermit', engraved specimen plate
ฤๅษี · hermit — engraved specimen plate
๑What tone does ษ give?class isn’t trivia — it’s the tone engine

A consonant’s class exists for one reason: it decides the tone. High class + no mark on a live syllable = rising tone; it reaches tones the low twins can't. Here’s every outcome for ษ as the initial:

Syllable– No mark◌่ mái èek◌้ mái thoo
Liveopen or sonorant endrisinglowfalling
Deadstop end or short vowellowlow—

Live syllable — open or sonorant end

–No markrising
◌่mái èeklow
◌้mái thoofalling

Dead syllable — stop end or short vowel

–No marklow
◌่mái èeklow

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
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 — Sanskrit retroflex sibilant ṣ; loans.

OriginIndic
LineageBrahmi → Khmer → Thai
UnicodeU+0E29
Statusin current use