στερεόω, -ῶ (< στερεός), [in LXX: Isa.42:5 (רָקַע), Jer.5:3 (חָזַק pi.), etc. ;] __(a) to make firm or solid; __(b) to strengthen, make strong; with accusative of person(s), Act.3:16; τ. βάσεις, pass., Act.3:7. Metaph. (cf. Je, l.with): τ. πίστει, pass., Act.16:5.† (AS)
Thayer:
1) to make solid, make firm, strengthen, make strong 1a) of the body of anyone
στερεόω
stereoō
ster-eh-o'-o
From G4731; to solidify, that is, confirm (literally or figuratively)
KJV Usage: establish, receive strength, make strong.
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.
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
G4764 στρῆνοςστρῆνος
strēnos
stray'-nos
Akin to G4731; a “straining”, “strenuousness” or “strength”, that is, (figuratively) luxury (voluptuousness)
KJV Usage: delicacy.
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)