This is the 516th most frequent Catalan word.
tornat
"Returned" or "turned" (past participle of "tornar").
Here, 'tornat' is used as the past participle of 'tornar' (to return), indicating the action of returning home.
Jo he tornat a casa després del viatge.
I have returned home after the trip.
In this sentence, 'tornat' refers to the action of something happening again, specifically the sheet returning to being white.
El full ha tornat a ser blanc després d’esborrar-lo.
The sheet has become white again after erasing it.
Here, 'tornat' describes the result of a change or transformation experienced by the subject.