Webster Dictionary 1967-69 deffinition of the IE Languages.

AMONG THE OTHER IE GROUPS, SUCH AS ITALIC CELTIC GERMANIC
ETC. THERE IS A GROUP: MACEDONIC

DEVIDED IN THREE TIME LINES AND IT'S SUBORDINATED LANGUAGES:

ANCIENT: MACEDONIAN

MEDEVIAL: MACEDONIAN

MODERN:

SOUTH: BULGARIAN, SERB-CROATIAN, SLOVENIAN, MACEDONIAN

WEST: CZECH, SLOVAK, POLISH, WENDISH etc.

EAST: RUSSIAN, UKRAINIAN, BELORUSSIAN