Answer: slav

AnswerCrossword Clue
SLAV

Tsar, often

SLAV

Bulgar or Pole

SLAV

Croat, e.g.

SLAV
Macedonian, for one
SLAV
Tchaikovsky's "Marche .."
SLAVBelgrade native
SLAVEastern European
SLAVSerb or Croat
SLAVSerb
SLAVCroat or Czech
SLAVPole, e.g.
SLAVCzech, e.g.
SLAVPole or Czech
SLAVCzech or Croat
SLAVCroat or Serb
SLAVMany a Balkan
SLAVDalmatian, e.g.
SLAVBalkan native
SLAVBohemian, e.g.
SLAVPole, for one
SLAVBelgrade resident
SLAVBulgarian, e.g.
SLAVCzech, for one
SLAVCertain Eastern European
SLAVSerb, e.g.
SLAVAusterlitz native, e.g.
SLAVMany a Balkan native
SLAVSerb or Czech
SLAVCossack, usually
SLAVCroat or Bulgar
SLAVPole or Croat
SLAVMany a Cossack
SLAVSerb, for one
SLAVLendl or Navratilova
SLAVPole, for example
SLAVBulgar or Croat
SLAVDalmatian or Croatian
SLAVBulgarian, for one
SLAVCroat, for one
SLAVCzech or Serb