or (shortened) בֵּית מַרְכָּבוֹת; from בַּיִת and the plural of מֶרְכָּבָה (with or without the article interposed); place of (the) chariots; Beth-ham-Markaboth or Beth-Markaboth, a place in Palestine; Bethmarcaboth.
from רָכַב; a vehicle; by implication, a team; by extension, cavalry; by analogy a rider, i.e. the upper millstone; chariot, (upper) millstone, multitude (from the margin), wagon.