Of or being a medieval mode having a range from the fourth below to the fifth above its final tone.
Designating a mode having a range about a fifth above and a fifth below a control note.
Designating a cadence with the subdominant chord immediately preceding the tonic chord, as in the amen of a religious hymn.
Origin of plagal
- Medieval Latin plagālis from plaga plagal mode from plagius plagal from Medieval Greek plagios (ēkhos) plagal (mode) from Greek oblique from plagos side plāk-1 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition