←
Middle Low German stoken (cognate)
←
Proto-Balto-Slavic *tyuk- (mention)
←
Proto-Indo-European *tewk- (mention)
←
Proto-Indo-European *tūk- (mention)
←
Proto-Indo-European *tew- (mention)
←
Proto-Indo-European *stew- (mention)
←
Latvian ķūska (mention)
←
Latvian cūška (mention)
←
Latvian *ķuk- (mention)
←
Latvian *tʲuk (mention)
←
Latvian čūska (mention)
←
Latvian čūkāt (mention)
→
Latvian čūska (mention)