G4732–στερεόω–stereoō

And having taken hold of him [ergänzt: by] the right hand he raised him up, and immediately his feet and ankle bones were made strong.

ἐστερεώθησαν estereōthēsan “were strengthened”

And, by faith in his name, his name has made this [ergänzt: man] strong whom ye behold and know; and the faith which is by him has given him this complete soundness in the presence of you all.

ἐστερέωσεν estereōsen “has strengthened”

The assemblies therefore were confirmed in the faith, and increased in number every day.

ἐστερεοῦντο estereounto “were strengthened”