The Collaborative International Dictionary of English v.0.48:
Ofttimes \Oft"times`\, adv. [Oft + time. Cf. -wards.] Frequently; often. --Milton. [1913 Webster]WordNet (r) 3.0 (2006):
ofttimes adv 1: many times at short intervals; "we often met over a cup of coffee" [syn: frequently, often, oftentimes, oft, ofttimes] [ant: infrequently, rarely, seldom]