1839, Modern Latin, noun use of neuter of Late Latin adjective sanitorius "health-giving," from Latin sanat-, past participle stem of sanare "to heal," from sanus "well, healthy, sane" (see sane). Latin sanare is the source of Italian sanare, Spanish sanar.
Samson
Samuel
samurai
san
San Francisco
sanatorium
sanctification
sanctify
sanctimonious
sanctimony
sanction