Meaning
"a smell, an odor" (akin to ozo, "to smell"), is translated "odor" in Joh 12:3, it is used metaphorically in Eph 5:2, RV, "an odor (of a sweet smell)," AV, "(a sweet smelling) savor," of the effects Godward of the Sacrifice of Christ; in Phi 4:18 of the effect of sacrifice, on the part of those in the church at Philippi, who sent material assistance to the Apostle in his imprisonment. The word is translated "savor" in 2Co 2:14, 2Co 2:16 (twice).
Note: For thumiama, "incense," translated "odors" in the AV of Rev 5:8 (RV, "incense"), see INCENSE. For amomon (quoted in RV marg. in the Latinized form amomum) in Rev 18:13, see SPICE.