元期 is read as げんき (genki) and means epoch.
げんき
genki
げんそしゅうきひょう
periodic table of elements
げんそしゅうきりつひょう
periodic law
げんそしゅうきりつ
periodic table of the elements
どうきもと
synchronization source
げんしゅ
sovereign
げんごう
name of an imperial era (e.g. Heisei, Shōwa)
がんり
principal and interest
げんろう
genrō (member of a pre-WWII body that informally advised the emperor)
がんそ
progenitor
もとしゅしょう
former prime minister
げんな
Genna era (1615.7.13-1624.2.30)
げんじ
Genji era (1864.2.20-1865.4.7)