SG Heritage Dictionary

Plaga [Noun] Webster's Dictionary 1913

A stripe of color.

Plagae [Plural] Webster's Dictionary 1913

Plagal [Adjective] Webster's Dictionary 1913

Having a scale running from the dominant to its octave; -- said of certain old church modes or tunes, as opposed to those called authentic, which ran from the tonic to its octave.

Plagate [Adjective] Webster's Dictionary 1913

Having plagae, or irregular enlongated color spots.