στρῆνος, -ους, τό (cf. Lat. strenuus), [in LXX: 4Ki.19:28 (שַׁאֲנָן)* ;] insolent luxury, wantonness: Rev.18:3 (a late word, first found in a Comic poet, B.C. 300, see Kennedy, Sources, 41, cf. στρηνιάω).† (AS)
Thayer:
1) excessive strength which longs to break forth, over strength 2) luxury 3) eager desire
στρῆνος
strēnos
stray'-nos
Akin to G4731; a “straining”, “strenuousness” or “strength”, that is, (figuratively) luxury (voluptuousness)
στερεός
stereos
ster-eh-os'
From G2476; stiff, that is, solid, stable (literally or figuratively)
KJV Usage: stedfast, strong, sure.
G4723 στείροςστείρος
steiros
sti'-ros
A contraction from G4731 (as stiff and unnatural); “sterile”
KJV Usage: barren.
G4732 στερεόωστερεόω
stereoō
ster-eh-o'-o
From G4731; to solidify, that is, confirm (literally or figuratively)
KJV Usage: establish, receive strength, make strong.
G4741 στηρίζωστηρίζω
stērizō
stay-rid'-zo
From a presumed derivative of G2476 (like G4731); to setfast, that is, (literally) to turnresolutely in a certain direction, or (figuratively) to confirm
G4766 στρώννυμιστρώννυμι
strōnnumi
strone'-noo-mee
Or a simpler form στρωννύω strōnnuō strone'-noo'-o , prolonged from a still simpler form στρόω stroō stro'-o (used only as an alternate in certain tenses; probably akin to G4731 through the idea of positing); to “strew”, that is, spread (as a carpet or couch)