痩せこける[yasekokeru] to get too skinny
痩せっぽち[yaseppochi] skinny person
痩せ衰える[yaseotoroeru] to become emaciated
痩我慢[yasegaman] fake stoicism
着痩せ[kiyase] looking slender in clothing

夏痩せ[natsuyase] summer loss of weight
痩る[yaseru] to become thin
痩せ土[yasetsuchi] barren soil
痩せ山[yaseyama] barren mountain
痩せ地[yasechi] barren soil

栄枯盛衰[eikoseisui] ups and downs of life
減衰[gensui] attenuation
減衰器[gensuiki] attenuator
古び衰える[furubiotoroeru] to waste away
弱り衰える[yowariotoroeru] to languish

神経衰弱[shinkeisuijaku] neurasthenia
衰える[otoroeru] to become weak
衰え果てる[otoroehateru] to be utterly spent or crushed
衰運[suiun] declining fortunes
衰躯[suiku] emaciated body