his mother was doddering and frail
彼の母はよろよろして、か弱かった - 日本語WordNet
And you, my brilliant doctor, you've been treating me for that horrid illness that makes me feel as if... as if I were a doddering old relic. あなたは立派なお医者様 老い朽ち果てるかのような 症状にさせる恐ろし病気を ―― 治療して下さっていた - 映画・海外ドラマ英語字幕翻訳辞書