威厳[igen] dignity
戒厳令[kaigenrei] martial law
寛厳[kangen] leniency and severity
厳つい[ikatsui] grim
厳か[ogosoka] austere

厳めしい[kibishii] severe
厳に[genni] strictly
厳科[genka] severe punishment
厳戒[genkai] strict guard
厳格[genkaku] severe

炎暑[ensho] heat wave
寒暑[kansho] hot and cold
劇暑[gekisho] severe heat
厳暑[gensho] extreme heat
向暑[kousho] facing the heat

酷暑[kokusho] intense heat
残暑[zansho] late summer heat
暑い[atsui] hot (weather, etc.)
暑がり[atsugari] (person) sensitive to heat
暑さ[atsusa] heat (of the weather)