This form -- apparently present indicative active, first person singular, of a verb with stem qeei- -- is attested only here. From the gloss it would seem to be connected with a middle/passive infinitive qeei=sqai, defined in Apollonius' Homeric Lexicon (86.18) as qauma/zein ('to marvel at'), and apparently (in Apollonius' view) related to the verb qea/omai ('I gaze at'). For reasons of accentuation and meaning it is less likely that the headword is a verbal derivative of either qeei=on ('sulfur': theta 96) or the late epic adjective qe/eios, which is apparently a metrical expansion of qei=os ('divine'), although the latter could conceivably produce a meaning appropriate to the present gloss ('I regard as divine', 'I hallow'). See LSJ s.v. qe/eion (web address 1).
Adler cites Lexicon Ambrosianum 202 as a comparandum.