Boyd’s Bible Dictionary:
(daily). A day’s journey, indefinite. Sabbath day’s journey, 2000 paces, or of a mile from the walls of a city (Deut. 1:2; Acts 1:12).
Strong’s Dictionary of Hebrew Words:
Meaning:
from 5265; a departure (from striking the tents), i.e. march (not necessarily a single day's travel); by implication, a station (or point of departure)