PERFECTIVE
Source: 566, 567
perfective. Perfective, a. conducive to perfection, perfecting
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Per‐fect″ive (pẽr‐fĕk″tĭv), a. Tending or conducing to make perfect, or to bring to perfection; — usually followed by of. “A perfective alteration.” Fuller. Actions perfective of their natures. Ray.