From Wiktionary, the free dictionary
From Greek φασαρία (fasaría, “unwanted noise”) from Italian fesseria (“stupidity, nonsense”).
fasaria
- a fuss, to-do, agitation, bustle (making a great show of the difficulty of the work one is undertaking)
- Joseph Nehama, Jesús Cantera (1977) “fasaría”, in Dictionnaire du Judéo-Espagnol (in French), Madrid: CSIC, →ISBN, page 96