Ultimately from биир (biir).
бириинчик • (biriincik)
- (nit)picky (fastidious, fussy, etc.) petty
наһаа бириинчик киһи- nahaa biriincik kihi
- a very fastidious person
- Synonym: талымас (talımas, “picky, fastidious”)
- Synonym: кубулҕаттаах (kubulğattaaq, “capricious, fickle”)