परिभाषेन्दुशेखर (नागेश भट्ट - व्याकरण परिभाषा सिद्धान्त एवं भैरवी टीका सटीक)

त्र अकार..."
Wait, could it be "अकारः"? Visarga? No, it has a vertical line and matra.
Wait, what if it is "अकारो गुणो"?
Wait, is the third letter really 'र'?
Look at the letters:
1: अ
2: का
3: ?
Wait, is 3 a 'र'?
Compare with 'र' in 'कृष्णर्द्धिः' (repha), 'इत्यत्र' (त्र).
Look at 'र' in 'अकाररूपादेश' (line 29):
अ - का - र - रू - पा - दे - श
In line 29:
'अ' (a)
'का' (kā)
'र' (ra) - just a simple curve down!
'रू' (rū) - curve down with horizontal/curved stroke to the right.
'पा' (pā)
Now look at line 28:
'अ'
'का'
'र' - simple curve down.
Then the next glyph:
Wait! Is it 'रूप'???
Wait, look at the next glyph:
It has a top bar. A vertical stem on the right. A curve on the left... wait!
Is it 'ो'?
Wait, look at 'गुणो':
गु - णो.
Before 'गु', there is ONE glyph!
If it's one glyph, could it be:

• 'रो'?