I have one that you may find interesting. A double parallel I discovered about 12 years ago and so far I haven't heard anyone else mention it.

There is a bird we call `swallow` in English, which has the same name as the action `to swallow`. I looked up these in an etymological dictionary and found that they have distinct, yet similar roots.

The Sino-Japanese word for the bird is 燕(tsubame). The action of swallowing can be written properly as 嚥下 (enge), in the same register as its antonym 嘔吐 (outo).

Coincidence?