What does Noa mean?
Hebrew No'ah (נֹעָה), 'motion, movement' (tied to a root meaning move/wander). One of the five daughters of Zelophehad who won the right to inherit (Numbers 26-27; Joshua 17). In Hebrew it is a distinct name from the male Noah (Noach, 'rest'), despite sharing the English spelling.
What does Davina mean?
A feminine form of David that arose in Scotland, carrying the same Hebrew root dwd 'beloved'. The meaning is inherited from the masculine original rather than from an independent root.