far·row 1 
(fărō)
(fărō)n.
A litter of pigs.
v. far·rowed, far·row·ing, far·rows
v.tr.
To give birth to (a litter of pigs).
v.intr.
To produce a litter of pigs.
[Ultimately from Old English fearh, pig; see porko- in the Appendix of Indo-European roots.]