aback
意味
- 後へ,後ろに
例文
I was completely taken aback by her reasoning.
彼女の理屈には全く面食らった。
Walter was taken aback by John's cruel insult.
ウォルターはジョンのひどい侮辱に面食らった。
I was quite taken aback at their bad manners.
彼らの行儀の悪さに全く驚いた。
語源
英語の原文（Wiktionary）
From Middle English abak, from Old English onbæc, equivalent to a- (“towards”) + back. Compare West Frisian tebek (“aback”, adverb, literally “to/at back”), Swedish tillbaka (idem.).