στρηνιάω, ῶ (< στρῆνος, which see), [in Sm.: Isa.61:6 (אָכַל) * ;] a word which first appears in the middle comedy (Rutherford, NPhr., 475 f.), to run riot, wax wanton: Rev.18:7-9 (cf. κατα-στρηνιάω).† SYN.: σπαταλάω (which see), τρυφάω (AS)
Thayer:
1) to be wanton, to live luxuriously
στρηνιάω
strēniaō
stray-nee-ah'-o
From a presumed derivative of G4764; to beluxurious