πυρόω, -ῶ (πῦρ) [in LXX chiefly for צָרַף;] to set on fire, burn up. In NT always pass, 1)
to be set on fire, to burn: Eph.6:16, 2Pe.3:12; ptcp, glowing, Rev.1:15. Metaphorical, of grief or indignation, 2Co.11:29; of lust, 1Co.7:9. 2) Of metals (cf. Job.22:25, Psa.12:7, Zec.13:9),
to be refined or purified by fire: Rev.3:18 (and so in RV, Rev.1:15, but see supr.). (
AS)