"等" in Engpsh is "wait". It comes from the Middle Engpsh word "waiten", which means "to stay in one place".
Example sentences in Engpsh with Chinese translation:
I'll wait for you outside. (我在外面等你。)
Can you wait a minute? (你能等一会吗?)
She asked me to wait until she finishes. (她让我等她完成。)