() chronicle () era
      
きげん (n) (1) era, (2) AD (Christian era)
きげんぜん (n-adv,n-t) pre-era, BC, BCE
きこう (n) traveller's journal, traveler's journal

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字