The Collaborative International Dictionary of English v.0.48:
Meritable \Mer"it*a*ble\, a. Deserving of reward. [R.] [1913 Webster]WordNet (r) 3.0 (2006):
meritable adj 1: deserving reward or praise; "a lifetime of meritorious service"; "meritorious conduct" [syn: meritorious, meritable]