幻を追う[maboroshiwoou] to pursue an illusion
幻影[genei] phantom
幻覚[genkaku] hallucination
幻覚剤[genkakuzai] hallucinogen
幻姿[genshi] apparition

幻視[genshi] visual hallucination
幻想[gensou] illusions
幻想劇[gensougeki] non-realistic drama
幻像[genzou] phantom

正朔[seisaku] beginning of the month or the year
八朔[hassaku] Hassaku orange (Citrus hassaku)
朔風[sakufuu] north wind
朔望[sakubou] first and fifteenth days of the lunar month (corresponding to new moon and full moon)

朔望月[sakubougetsu] synodic month
朔望潮[sakubouchou] spring tide
告朔[kousaku] ceremony where the Emperor would inspect the records of attendance and absence of officials