Debility rhymes with:
affordability, ability, acceptability, adaptability, admissibility, affordability, amiability, applicability, availability, capability, combinability, compatibility, comprehensibility, deductibility, electability, feasibility, flexibility, inaccessibility, invisibility, irresponsibility, irritability, legibility, malleability, overwhelmability, palatability, possibility, probability, rehability, reliability, responsibility, susceptibility, viability
Debility sounds like:
dabbled, dapolito, davault, deadbolt, debilitate, debilitated, debold, debolt, default, defaulted, deflate, deflated, defollet, deplete, depleted, deployed, depopulate, devaluate, devaluated, devalued, devault, devilwood, dibbled, diebold, dippold, dippolito, doubled, doubleday, dufault, duffield