| morbific | Synonym: pathogenic. Origin: L. Morbus, disease, + facio, to make (05 Mar 2000) |
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| morbifical | Causing disease; generating a sickly state; as, a morbific matter. Origin: L. Morbus disease + -ficare (in comp) to make: cf. F. Morbifique. See -fy. Source: Websters Dictionary (01 Mar 1998) |