ABADJIEV Абаджиев Bulgarian
Patronymic name derived from the Turkish word aba
"coat". It may have originally denoted the children of a tailor.
BAKALOV Бакалов Bulgarian
Patronymic derived from Bulgarian bakalin
HADZHIEV Хаджиев Bulgarian
Means "son of the pilgrim" from Bulgarian хаджия (hadzhiya)
meaning "pilgrim", ultimately derived from Arabic حجّي (hajji)
PAVLOV Павлов Russian, Bulgarian
Means "son of PAVEL
". A famous bearer of this surname was the Russian scientist Ivan Pavlov (1849-1936), known for his discovery of the conditioned reflex.