तैत्तिरीय आरण्यक (सायण भाष्य एवं भट्टभास्कर भाष्य सहित सम्पूर्ण प्रथम भाग)

उपनिषद्वेद्यत्वं (upaniṣad-vedyatvaṁ) vs उपनिषदेकवेद्यत्वं vs उपनिषद्ध्येयत्वं:
Look at line 19: "तं त्वौपनिषदित्यादौ प्रोक्ता वेदैकमेयता ॥"
Line 21: "पुरुषस्योपनिषद्वेद्यत्वं प्रतीयते" - wait, could the letters be:
उ - प - नि - ष - द्ध्ये - य - त्वं?
Wait, look at the letter:
It's द् (da) combined with ध (dha) = द्ध (ddha), with े (e) = द्धे, then य (ya), then त्वं (tvaṁ).
Wait, द्ध्येयत्वं? Yes, double d: d-dhye-ya-tvaṁ!
Wait, or is it:
द् (d) + घे (ghe)?
Wait, let's look at the letter again:
It has:
ष (ṣa)
then a consonant: it has a round top (द), a bottom loop with a horizontal bar... wait, that's 'द्ये' (dye)!
Wait, if it's 'द्ये' (dye), what is next?
Next is 'य' (ya) with an anusvara? No, next is 'त्वं'!
Wait! Is it "उपनिषद्द्येयत्वं" or "उपनिषद्ध्येयत्व