1610s, "pertaining to a burial or place of burial," from Latin sepulcralis "of a tomb, sepulchral," from sepulcrum (see sepulchre) + -al (1). Transferred sense of "gloomy" is from 1711. Related: Sepulchrally.
septicemia
septillion
septuagenarian
Septuagint
septum
sepulchral
sepulchre
sepulture
sequacious
sequel
sequela