(guǐ) tenth of 10 heavenly stems 十天干; tenth in order; letter "J" or roman "X" in list "A, B, C", or "I, II, III" etc; deca
(guǐchǒu) fiftieth year J2 of the 60 year cycle, e.g. 1973 or 2033
(guǐhài) sixtieth year J12 of the 60 year cycle, e.g. 1983 or 2043
(guǐmǎo) fortieth year J4 of the 60 year cycle, e.g. 1963 or 2023
(guǐsì) thirtieth year J6 of the 60 year cycle, e.g. 2013 or 2073
(guǐwèi) twentieth year J8 of the 60 year cycle, e.g. 2003 or 2063
(guǐyǒu) tenth year J10 of the 60 year cycle, e.g. 1993 or 2053