G4732–στερεόω–stereoō

And he took him by the right hand, and lifted him up: and immediately his feet and ankle bones received strength.

ἐστερεώθησαν estereōthēsan “were strengthened”

And his name, through faith in his name, hath made this man strong, whom ye see and know: yes, the faith which is by him, hath given him this perfect soundness in the presence of you all.

ἐστερέωσεν estereōsen “has strengthened”

And so were the churches established in the faith, and increased in number daily.

ἐστερεοῦντο estereounto “were strengthened”