Learn how to say Plinths correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word plinth:
a heavy base supporting a statue or vase:
busts of the King and Queen on marble plinths
Architecture the lower square slab at the base of a column.
Architecture the base course of a building, or projecting base of a wall.
late 16th century: from Latin plinthus, from Greek plinthos ’tile, brick, squared stone’. The Latin form was in early use in English