In Roman mythology, Semonia was the goddess of sowing. She belonged to a group of agricultural deities which also comprised Setia (or Seja) and Segetia.<ref>Pliny, Naturalis Historia, XVII, 2.2</ref><ref>Macrobius, Saturnalia, I. 16</ref><ref>Augustine, De civitate Dei, IV. 8</ref> Their names are derived from the same stem as the Latin verb sero "to sow".
This ancient deity, associated with crops and sowing,<ref>Winning, William Balfour. A Manual of Comparative Philology. London: Printed for J. G. & F. Rivington. 1838. p. 255-256.</ref><ref>Yancey, P. H. Origins from Mythology of Biological Names and Terms: Part III, O-Z. In: Bios. Vol. 16, No. 4 (Dec., 1945). pp. 268-282. [1]</ref> is of possible Roman or Sabine origin and worship. She is usually attested with the epithet Salus Semonia.<ref>Axtell, Harold Lucius. The deification of abstract ideas in Roman literature and inscriptions. Chicago: The University of Chicago Press. 1907. p. 13.</ref>
Her possible male counterpart is Sabine god Semo Sancus,<ref>Woodard, Roger D. Indo-European Sacred Space: Vedic and Roman Cult. University of Illinois Press. 2006. p. 184. Template:ISBN</ref> whose traits merged with Dius Fidius's.
Semonia and Sancus appear together with other agricultural/crop deities Seia and Segetia.<ref>Woodard, Roger D. Myth, Ritual, and the Warrior in Roman and Indo-European Antiquity. Cambridge University Press. 2013. pp. 212-213. Template:ISBN</ref><ref>MacClement, W. T. Some protective devices among plants. Canada, Kingston: Publishing Committee of Queen's Quarterly, Queen's University. 1909. p. 60.</ref>