hoar

名词 hoar:

1. ice crystals forming a white deposit (especially on objects outside)
   同义词：frost, hoarfrost, rime

形容词 hoar:

1. showing characteristics of age, especially having grey or white hair
   同义词：grey, gray, grey-haired, gray-haired, grey-headed, gray-headed, grizzly, hoary, white-haired

1. The old man has hoar hair.
   那位老人头发花白。
2. He told us a hoar old joke that we'd all heard many times before.
   他给我们讲了一个我们都听了很多次的老掉牙的笑话。

hoar

adj.（形容词）
Hoary.
灰白的
n.（名词）
Hoarfrost.
白霜

来源：
Middle English hor
中古英语 hor
from Old English h3r
源自 古英语 h3r