late Middle English (as an adjective): from Latin deliberatus, ‘considered carefully’, past participle of deliberare, from de- ‘down’ + librare ‘weigh’ (from libra ‘scales’)
中世後期英語(形容詞として):ラテン語のdeliberatus, 'considered carefully', deliberareの過去分詞、de- 'down' + librare 'weigh' (libra 'scales' から)に由来する。