Balkan Slavic (Vranishte). Causal or factual complementizer: oti 'because, for that reason, that' (Greek): Absent, 1

ћути зашто се плаши. ćuti zašto se plaši.
ćuti
be_silent(IPFV).PRS.3SG
zašto
because
se
REFL.CL
plaši
be_afraid(IPFV).PRS.3SG
He/she/it is silent out of fear.
Type: Naturalistic spoken
Source: Mladenović 2001: 150