Definition of: sanctify

(sangk′tə·fī) v.t. ·fied, ·fy·ing
1. To set apart as holy or for holy purposes; consecrate.
2. To free of sin; purify or make holy.
3. To give religious sanction to; render sacred or inviolable, as a vow.
4. To render productive of or conductive to holiness or spiritual blessing. [<OF saintifier, sanctifier <LL sanctificare <L sanctus holy + facere make]
—sanc′ti·fi·ca′tion noun
—sanc′ti·fi′er noun