heroon
/hɪəˈrəʊɒn/(also heroum, heroön, hêrôon) Ancient Greek History
noun
Originally: a temple or sanctuary dedicated to a hero, often containing or marking the hero's (supposed) tomb. Later also: a sepulchral monument in the form of a small temple.
Origin
Early 17th century; earliest use found in Philemon Holland (1552–1637), translator. Originally from (i) Middle French heroüm.