from The American Heritage® Dictionary of the English Language, 4th Edition
- conj. On which.
- conj. In close consequence of which: The instructor entered the room, whereupon we got to our feet.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- conj. After which.
- conj. In consequence of which.
- conj. Upon which.
from the GNU version of the Collaborative International Dictionary of English
- adv. Upon which; in consequence of which; after which.
from The Century Dictionary and Cyclopedia
- Upon what place, ground, cause, etc.? whereon?
- Upon which or whom; whereon.
Sorry, no etymologies found.