貞 - upright, chastity, constancy

unfaithfulness; infidelity; unchastity

Jōō era (1222.4.13-1224.11.20)

extreme faithfulness

Jōgan era (859.4.15-877.4.16)

Jōwa era (of the Northern Court) (1345.10.21-1350.2.27); Teiwa era

Jōji era (of the Northern Court) (1362.9.23-1368.2.18); Teiji era

to keep one's chastity; to remain faithful to one's spouse; to remain faithful to one's lover

pavilion housing the empress's reception hall (in the inner Heian Palace)

Sanriku earthquake of 869 CE

loss of virginity (of a male)

Teisei Gakuen Junior College

chastity belt