permissive
per.mis.sive \p*r-'mis-iv\ aj [F permissif, fr. L permissus, pp.] archaic 1: granted on sufferance : TOLERATED 2: granting or tending to grant permission : TOLERANT 3: allowing discretion : OPTIONAL - per.mis.sive.ly av
Webster's English Dictionaryper.mis.sive \p*r-'mis-iv\ aj [F permissif, fr. L permissus, pp.] archaic 1: granted on sufferance : TOLERATED 2: granting or tending to grant permission : TOLERANT 3: allowing discretion : OPTIONAL - per.mis.sive.ly av