limped, limpid

Limped or limped is the past tense ( yesterday, or some time ago ) of "limp", meaning to walk in a faltering manner, or with an irregular gait--
He limped all the way back to camp on his sprained ankle.
He needed a cane until his leg got better, but he only limped for a few months after that.

Limpid or limpid means clear or transparent, like a still pool--
"Those cool and limpid green eyes..."
Now try to imagine that you are gazing into a limpid pool.

Now that you know that, you can say--
"He limped back to the spring on his sore foot, and sat gazing into the limpid blue water."

Note--not to be confused with "limpet", meaning the small sea creature with a shell that looks like a cone--
He found a limpet stuck to a rock, and now he wants to learn more about it.