From agan (much) and hallomai; properly, to jump for joy, i.e. Exult -- be (exceeding) glad, with exceeding joy, rejoice (greatly).
see GREEK hallomai
ἀγαλλιαθῆναι (agalliathēnai) − 1 Occurrence
ἀγαλλιᾶσθε (agalliasthe) − 3 Occurrences
ἀγαλλιῶμεν (agalliōmen) − 1 Occurrence
ἀγαλλιώμενοι (agalliōmenoi) − 1 Occurrence
ἠγαλλιάσατο (ēgalliasato) − 4 Occurrences
ἠγαλλίασεν (ēgalliasen) − 1 Occurrence