Likewise or similarly in other lexica; references at Photius phi374 Theodoridis.
The headword -- evidently extracted from somewhere -- is the accusative plural of the masculine noun fw/r, thief (phi 662); see generally LSJ s.v., and cf. cognates at phi 663, phi 664, and phi 666.
[1] The gloss is the same form as the lemma, but from the Ionic noun lh|sth/s, brigand/pirate/robber; see generally LSJ s.v.
[2] In this extra (etymological) gloss, the transmitted substantive is accusative singular of the feminine noun fwra/, theft; see generally LSJ s.v. In her critical apparatus Adler notes that the edition of Aemilius Portus (1630) suggested fw=ran to\ instead of th\n fw/ran; the form fw=ran is unattested, however. Theodoridis expresses cautious support for fwra=n to/ (H. Stephanus). Hesychius has Attic oxytone fwra/ "theft" but also Ionic paroxytone fw/rhn "search."
Adler also reports that ms F has the present infinitive e)reuna=n (cf. phi 664 (gloss)), not the aorist.