出典:Wiktionary
From Middle English deperishen, from Old French deperiss-, extended stem of deperir, from Latin deperīre (“to die down, to perish gradually”), present active infinitive of depereō.
deperish (三人称単数 現在形 deperishes, 現在分詞 deperishing, 過去形および過去分詞形 deperished)