PINNACLE

I. noun Etymology: Middle English pinacle, from Anglo-French, from Late Latin pinnaculum small wing, gable, from Latin pinna wing, battlement Date: 14th century an upright architectural member generally ending in a small spire and used especially in Gothic construction to give weight especially to a buttress, a structure or formation suggesting a ~, the highest point of development or achievement ; acme , see: summit II. transitive verb (-cled; pinnacling) Date: 14th century to surmount with a ~, to raise or rear on a ~