懈怠: spiritual sloth; laziness

𱁬: The meaning of this term is uncertain.

大都市: a metropolis, a large city

お大事に: get well soon, take care of yourself

代理: surrogation, proxy

one part

The hiragana syllable ろ (ro). Its equivalent in katakana is ロ (ro). It is the forty-third syllable in the gojūon order; its position is ら行お段 (ra-gyō o-dan, “row ra, section o”).

炉: furnace, kiln

(endearing) denotes endearment

理論: a theory