This is the 9158th most frequent Swedish word.
etsat
"Etched."
Here 'etsat' is used metaphorically to describe something that is firmly imprinted or engraved in one's mind or memory.
Minnena från resan är etsade i mitt sinne.
The memories from the trip are etched in my mind.
The term 'etsat' is applied here to physically describe the result of a process, primarily using chemicals to mark or engrave a material.
Mönstret var etsat in i glaset genom en kemisk process.
The pattern was etched into the glass through a chemical process.
In this sentence, 'etsat' refers to the literal act of engraving or carving something, in this case the artist's name on the painting.