英 ['diːkɒɪ; dɪ'kɒɪ]
1. de- + cage => *decage => decoy.
2. the sense is from the practice of using tamed ducks to lead wild ones along channels into captivity.
来自荷兰语de kooi, the cage. 即笼子，陷阱，后用来指诱捕鸟兽的假兽，假鸟。
- decoy:  Dutch kooi means ‘cage’ (it comes from Latin cavea ‘cage’, source of English cage). The term came to be applied specifically to a pond which had been surrounded with nets into which wildfowl were lured for capture. English took it over, but brought with it the Dutch definite article de, so that Dutch de kooi ‘the decoy’ became English decoy.
- decoy (n.)
- 1610s, perhaps from Dutch kooi "cage," used of a pond surrounded by nets, into which wildfowl were lured for capture, from West Germanic *kaiwa, from Latin cavea "cage." The first element is possibly the Dutch definite article de, mistaken in English as part of the word. But decoy, of unknown origin, was the name of a card game popular c. 1550-1650, and this may have influenced the form of the word.
- decoy (v.)
- 1650s, from decoy (n.). Related: Decoyed; decoying.
- 1. He was booked on a flight leaving that day, but that was just a decoy.
- 2. Nick acted as a decoy after the dog attacked a group of children swimming in the river.
- 3. The use of Ozawa's impotent carriers as a decoy force was brilliant.
- 4. These pellets could burst the decoy balloons that would accompany a swarm of warheads.
- 5. It's just a decoy, a facade, so we'll leave her alone.
- 那只是一个假象, 一个外表, 所以我们要让她一个人呆着.
[ decoy 造句 ]