1590s, "to start with fright (as a startled horse does), shy, take alarm," from Middle English bugge "specter" (among other things, supposed to scare horses at night); see bug (n.); also compare bogey (n.1). The meaning "to raise scruples, hesitate" is from 1630s. As a noun from 1650s. Related: Boggled; boggling; boggler (from c. 1600 as "one who hesitates").
例文
1. Even I boggle at the idea of spending so much money.
こんなにお金がかかると思うと、私も少しためらってしまいます。
2.Never boggle at a difficulty.
は決して難しいことを見てはいけない。
3.The good grace with which they face the latest privations makes the mind boggle .
彼らが最近の貧困に直面して示した平然とした態度は理解しがたい。
4.We shouldn 't boggle at this opportunity to make a profit.