synchairō

(Translation from NRSV for the New Testament and Brenton for the Septuagint with a few modifications for a more literal meaning)

Luke

1: 58	Her neighbors and relatives heard that the Lord had shown his great mercy to her, and they rejoiced with (synchairō) her.
15: 6	And when he comes home, he calls together his friends and neighbors, saying to them, 'Rejoice with (synchairō) me, for I have found my sheep that was lost.'
15: 9	When she has found it, she calls together her friends and neighbors, saying, 'Rejoice with (synchairō) me, for I have found the coin that I had lost.'

1 Corinthians

12: 26	If one member suffers, all suffer together with it; if one member is honored, all rejoice together (synchairō) with it.
13: 6	it does not rejoice in wrongdoing, but rejoices (synchairō) in the truth.

Philippians

2: 17	But even if I am being poured out as a libation over the sacrifice and the offering of your faith, I am glad and rejoice with (synchairō) all of you
2: 18	and in the same way you also must be glad and rejoice with (synchairō) me.

Genesis (LXX)

21: 6

And Sarrha said, The Lord has made laughter for me, for whoever shall hear shall rejoice with (synchairō; Heb. ṣĕḥaq) me.