Ectenia – An Ektenia (from Greek: ἐκτενής, translit. ektenés; literally, “diligence”), often called by the better known English word litany, consists of a series of petitions occurring in the Eastern Orthodox and Byzantine Catholic liturgies. The prevalent ecclesiastical word for this kind of litany in Greek is Συναπτή (synaptê), while ektenia is the word preferred in Church Slavonic (ектенїѧ ekteniya).

Ectenia – Wikipedia

https://en.wikipedia.org/wiki/Ectenia

An Ektenia (from Greek: ἐκτενής, translit. ektenés; literally, “diligence”), often called by the better known English word litany, consists of a series of petitions occurring in the Eastern Orthodox and Byzantine Catholic liturgies. The prevalent ecclesiastical word for this kind of litany in Greek is Συναπτή (synaptê), while ektenia is the word preferred in Church Slavonic (ектенїѧ ekteniya).