1) Component 2) Component part 3) Kind of legatee 4) Part 5) Portion 1) Residual 
• (a.) Consisting of residue; as, residuary matter; pertaining to the residue, or part remaining; as, the residuary advantage of an estate.
Re·sid'u·a·ry adjective [ See Residue .] Consisting of residue; as, residuary matter; pertaining to the residue, or part remaining; as, the residuary advantage of an estate. Ayliffe. Residuary clause (Law) , 
[adj] - (law) entitled to the residue of an estate (after payment of debts and specific gifts)
residuary 1. Entitled to the residue of an estate (after payment of debts and specific gifts): 'He was entitled to the residuary part of the estate.' 2. Relating to or indicating a remainder; such as, residual quantity.