Adler reports a comparable entry in the Ambrosian Lexicon (282).
The primary headword -- unglossed here; glossed with kaqe/zesqai in ps.-Zonaras -- is the middle infinitive of the defective verb parh=mai. It is independently attested only at Galen, De differentia pulsuum 8.549.
[1] This form, apparently pluperfect indicative middle, third person singular, is attested only here and at epsilon 3638. It is glossed here with an imperfect verb.