Byzantine seal with words Savior help

[Orpio]

Hello,

I have some problem with correct read of seal. On the obverse letters are readable and I see:

CωTEP BOHΘEI - Savior help

but on the reverse is more problems. I can read only one word:

(Τ)ΕΟΔ(Ο)Ρω

First letters are for me not sense. Could you help me in this matter?

What century do you think this seal can be dated to?

[Gert]

It is 'so doulo', your servant, making it a 12-syllable verse. Your obv. reading is OK, rev. reads:

CW ΔU
ΛW ΘEO
ΔWPW

Date circa 2nd half 11th century.

Regards
Gert

[Orpio]

Dear Gert,

Thank you very much for your support!

Why you think that it is second half of XI cent? Letters? Form? could more clarify?

BR
Piotr

[Gert]

Yes, letter form. Always a little subjective of course. Could be a little earlier, not much later.
Gert