Definify.com
Webster 1913 Edition
Way-going
Way′-goˊing
,Adj.
 Going away; departing; of or pertaining to one who goes away. 
Way-going crop 
(Law of Leases)
, a crop of grain to which tenants for years are sometimes entitled by custom; grain sown in the fall to be reaped at the next harvest; a crop which will not ripen until after the termination of the lease. 
Burrill.