save (v.) Look up save at Dictionary.com
early 13c., "to deliver (one's soul) from sin and its consequences;" mid-13c., "to deliver or rescue from peril," from Old French sauver, from Late Latin salvare "make safe, secure," from Latin salvus "safe" (see safe (adj.)). Meaning "store up, to keep instead of spending" is attested from mid-14c. Save face (1898) first was used among the British community in China and is said to be from Chinese; it has not been found in Chinese, but tiu lien "to lose face" does occur. To not (do something) to save one's life is recorded from 1848.
save (n.) Look up save at Dictionary.com
in the sports sense of "act of preventing opponent from scoring," 1890, from save (v.).
save (prep.) Look up save at Dictionary.com
c.1300, from safe (q.v.), paralleling evolution in Old French sauf "safe," prepositional use of the adjective, in phrases such as saulve l'honneur "save (our) honor."