from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to, or characteristic of, working days, or workdays; everyday; hence, plodding; hard-working.
from The Century Dictionary and Cyclopedia
- n. Any day on which work is ordinarily performed, as distinguished from Sundays and holidays.
- n. That part of the day which is devoted or allotted to work or labor; the period each day in which work is actually carried on: as, a working-day of eight hours.
- Relating to days on which work is done, as opposed to Sundays and holidays; hence, plodding; laborious.
Sorry, no etymologies found.