点紙: rare synonym for 礼紙 (raishi): a sheet of white paper covering a formal letter or other document as a kind of formal wrapping

好奇心: curiosity, inquisitiveness

agent, chemical substance / drug, medicine / dose

a cant or secret language of ladies-in-waiting in the imperial court, arising during the Muromachi period and later spreading to the general population / a word originally belonging to this cant