From the base of basis (through the idea of basality); stable (literally or figuratively) -- firm, of force, stedfast, sure.

see GREEK basis

βεβαία (bebaia) − 2 Occurrences

βεβαίαν (bebaian) − 4 Occurrences

βέβαιος (bebaios) − 1 Occurrence

βεβαιότερον (bebaioteron) − 1 Occurrence