/hens/ , adv.
1. as an inference from this fact; for this reason; therefore: The eggs were very fresh and hence satisfactory.
2. from this time; from now: They will leave a month hence.
3. from this source or origin.
4. Archaic.
a. from this place; from here; away: The inn is but a quarter mile hence.
b. from this world or from the living: After a long, hard life they were taken hence.
c. henceforth; from this time on.
interj.
5. Obs. depart (usually used imperatively).
[ 1225-75; ME hens, hennes, equiv. to henne (OE heonan ) + -es -S 1 ]