G0020–ἀγαλλίασις–agalliasis

And you will be glad and have great delight; and numbers of people will have joy at his birth.

ἀγαλλίασις, agalliasis “gladness,”

For, truly, when the sound of your voice came to my ears, the baby in my body made a sudden move for joy.

ἀγαλλιάσει agalliasei “exultation”

And day by day, going in agreement together regularly to the Temple and, taking broken bread together in their houses, they took their food with joy and with true hearts,

ἀγαλλιάσει agalliasei “gladness”

You have been a lover of righteousness and a hater of evil; and so God, your God, has put the oil of joy on your head more than on the heads of those who are with you.

ἀγαλλιάσεως agalliaseōs “of exultation”

Now to him who is able to keep you from falling, and to give you a place in his glory, free from all evil, with great joy,

ἀγαλλιάσει, agalliasei “exultation —”