This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
逘 combines the movement radical 辶 with 矣, but the exact historical development and original meaning are uncertain.
With no clear meaning, picture the movement radical 辶 carrying an obscure inner shape 矣, like a path leading to an unknown destination.
For ギ, imagine a mysterious path marked only by a single letter G: G -> ギ, and the road 辶 leads forward into uncertainty.