有り得ない: impossible

穢多: (historical, offensive) the lowest group in Japan’s caste system during the Edo period

past tense of える (eru) [ichidan]

ahem (clearing of the throat) / hmph! (triumphant)

使役: (linguistics) causative form / 私益: (finance) private interest

"to obtain a lack of events": to accomplish something without incidents

scrubbing and washing, kitchen work

what

what number, how many (used with a counter) / (used with も) many (used with a counter)

something