= Synagoge, Photius pi412 Theodoridis.
The headword is present indicative middle/passive, third person singular, of pari/hmi. It must be extracted from somewhere -- perhaps Aristotle, Posterior Analytics 91b28, where its appearance prompted comment from John Philoponus.
For other forms of the same verb, see pi 553, pi 591 through pi 593, pi 600, pi 601, pi 608, pi 609, pi 650, pi 651, and pi 646 through pi 649.