1580s, "tumble down, fall headfirst," earlier "tumble or roll about" (1540s), from top (v.) "to tip" + frequentative suffix -le. Transitive sense also is from 1590s. Related: Toppled; toppling.
例文
1. The action seemed a clumsy attempt to topple the Janata Dal government.
という人民党政府を転覆しようとする動きには策略が欠けているようだ。
2.The tree is so badly damaged they are worried it might topple over.
この木はひどく損傷しており、倒れてしまうのではないかと心配されています。
3.The general is accused of conniving in a plot to topple the government.
将軍は政府転覆の陰謀を容認したと告発された。
4.He slapped his knee and began to topple from his seat.