The headword is the aorist indicative middle, third person singular, of the verb parale/gw, I lay alongside; see LSJ s.v. It is extracted from Homer: see next note.
[1] The gloss is the aorist indicative passive, third person singular, of the compound verb parakoima/w, I go to bed alongside; see LSJ s.v. The headword is identically glossed in the D scholia on Homer, Iliad 2.515 (web address 1), which describes Ares' secret liaison with Astyoche, daughter of Aktor (cf. alpha 584); see also the D scholia on Homer, Iliad 6.198.
[2] From scholion A (Aristonicus) on Homer, Iliad 20.224 (web address 2), where the scholiast gestures at an apparently incongruous verb. In Homer's poem, Aeneas (OCD(4) s.v. and alphaiota 214) recounts his ancestry and describes the vast herd of horses owned by one forebear. The north wind Boreas (cf. beta 390 gloss) eventually becomes enamored with some of the mares, assumes the form of a stallion with dark hair (kuanoxai/th|), and manages to sire a dozen fillies. But kuanoxai/ths (dark-haired) is an epithet of Poseidon, Hesiod already gives parale/cato Kuanoxai/ths at Theogony 278 (web address 3), and so the choice of the verb may be simply formulaic (Edwards, p. 318).