τελέθω (τέλλω): poetic synonym of εἶναι or γίγνεσθαι, νὺξ ἤδη
τελέθει, ‘it is already night,’ Il. 7.282
; ἄρνες ἄφαρ κεραοὶ τελέθουσιν,
‘become horned,’ ‘get horns’
straightway, Od. 4.85
; παν-
τοῖσι τελέθοντες, ‘assuming
all sorts of shapes,’ Od.
17.486.