The word is a part from an inscription carved into a stone column ,dated back to a 9th century.The column has been found in Bulgaria.
In that case, ohsi, PANFYMON is more likely to be a Slavic word derived from a Greek epithet, perhaps formed from pan
, "completely" + thymοō
, "rage," "be high-spirited" (cf. panthymadon
, Adv., "most heartily," Homer, Odyssey
18.33). Maybe PANFYMON = panthymos
in the accusative singular or genitive plural case.