Learn how to say Plagal correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word plagal:
(of a church mode) containing notes between the dominant and the note an octave higher. Compare with authentic.
late 16th century: from medieval Latin plagalis, from plaga ‘plagal mode’, from Latin plagius, from medieval Greek plagios (hēkhos) ‘plagal (mode)’, from Greek plagos ‘side’