whereunder

Etymology

where +‎ under

Adverb

whereunder (not comparable)

1. (archaic) Under which or what.
   • 1911, David Graham Phillips, The Conflict, ch. 8,

     The real bottom cause of the change was the "gentlemen's agreement" between the two party machines whereunder both entered the service of the same master.

See also

• (‘here-’ words) here; hereabout, hereabouts, hereafter, hereat, herebefore, hereby, herefore, herefrom, herein, hereinafter, hereinbefore, hereinto, hereof, hereon, hereto, heretofore, hereunder, hereunto, hereupon, herewith, herewithal
• (‘there-’ words) there; thereabout, thereabouts, thereafter, thereagain, thereagainst, thereamong, therearound, thereas, thereat, therebefore, therebeside, thereby, therefore, therefrom, therein, thereinafter, thereinbefore, thereinto, thereof, thereon, thereto, theretofore, thereunder, thereunto, thereupon, therewith, therewithal
• (‘where-’ words) where; whereabout, whereabouts, whereafter, whereagainst, whereamong, whereas, whereat, whereby, wherefore, wherefrom, wherein, whereinafter, whereinbefore, whereinto, whereof, whereon, whereto, wheretofore, whereunder, whereunto, whereupon, wherewith, wherewithal

References

• Oxford English Dictionary, 2nd ed., 1989.