relict C2+

/ˈrɛlɪkt/ a surviving remnant of a former population or species

reliquary C2+

/ˈrɛlɪˌkwɛri/ a container or shrine in which sacred relics are kept

reliquiae C2+

/rɪˈlɪkwiˌi/ remains or remnants, especially fossil remains or relics