मानसार शिल्पशास्त्र (प्रसन्ना कुमार आचार्य - प्राचीन भारतीय स्थापत्य, नगर-नियोजन व मूर्ति-शिल्प महाकोश)

ितमुखं" -> "मुखं"!
Look at the 'ख' in "मुखं" in line 17:
It has the exact same structure: curved left part, lower loop connecting to the vertical stem!
Now compare that 'ख' in "मुखं" with the letter in X (Word 2 of line 23):
THEY ARE IDENTICAL!
It is absolutely, 100% 'ख'!
So Word 2 is indeed "परिखा"!

Wait, now look at Word 1 in line 23:
Does Word 1 have 'ष्ट' or something else?
Wait, look at Word 1:
Does it have 'ष'?
Wait! Look at Word 1:
Is it "परिष्टा"?
Wait, look at Word 1:
प, र with ि. Then:
Wait, is the letter 'ष्ट'?
Yes, it has the square top of 'ष' and a subscript 'ट'.
So Word 1 is "परिष्टा"!
Wait, could it be "परिष्टा"? Yes!

Let's check line 26:
"64. (1) J. नन्दायमासमूठे, A. F. नंदायमासरूपे च जायते, I. नानायसमुहे;"
Wait, look at the words in line 26:
J. नन्दायमासमूठे
A. F. नंदायमासरूपे च जायते
I. नानाय