Sophocles, Ajax 899 (web address 1), with scholion. The headword, extracted from the line, is a two-ending adjective in the masculine and feminine nominative singular; see generally LSJ s.v.
[1] The gloss, attested only here and in the Sophoclean scholia, is the perfect middle/passive participle, masculine nominative singular, of the verb perikuli/ndw, I roll around; see LSJ s.v.
[2] The line is spoken by Tecmessa, on discovering the hero's body. [In her critical apparatus Adler notes that mss GVM wrongly transmit the adjective accompanying 'sword' as korufai/w| (dative singular of korufai=os, "the top of" -- perhaps to the hilt).]