From Wiktionary, the free dictionary
Probably expressive variant of Proto-Slavic *troska, cognate with Macedonian троа (troa, “very small, little”) (adj.), Czech troska (“wreckage”).
троха́ • (trohá) f (diminutive троши́ца)
- crumb, bit (small piece of biscuit, cake, etc)
- Synonym: (dialectal) крух (kruh)
- троша́ (trošá, “to crush, to crumble”)
- трошли́в (trošlív, “friable, crumbly”)
- “троха”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Sofia: Bulgarian Academy of Sciences, 2014
- “троха”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Chitanka, 2010