ken’eki:
検疫 (quarantine: investigation + epidemic)
権益 ((one’s) interests: claim + benefit)
taieki:
退役 (to retire from military service: to retire + military service)
体液 (body fluids: body + fluids)
shieki:
使役 (employment: to employ + service)
私益 (private interest (financial): private + benefit)
kōeki:
公益 (public benefit: public + benefit)
交易 (trade, commerce: to exchange + to exchange)
ekigaku:
疫学 (epidemiology: epidemic + branch of study)
易学 (study of divination: divination + branch of study)