I'm fascinated by these words that describe pieces of our lived experience in a way that makes us say, "I knew there was a word for this!" They seem similar to the tip-of-the-tongue phenomenon, but in a semantic sense.

A few from English that I like:

curglaff - the shock felt in bathing when one first plunges into the cold water

groak - to silently watch someone while they are eating, hoping to be invited to join them