Definition of "ka"

Then, I wondered how long I must wait before seeing my Double, but if I recalled, the Ka was not supposed to appear before the seventy days of embalming were done.

1983, Norman Mailer, Ancient Evenings

Hence Dorian's portrait is like the ka or double of the deceased in Egyptian tombs, heaped with toys and furniture.

1990, Camille Paglia, Sexual Personae

‘You could bind the ka of a man to his body for five thousand years,’ said Jaquel.

2011, Neil Gaiman, American Gods (Tenth Anniversary Edition), William Morrow 2013, p. 179

Now nature stood ever on this point, Kæ mee Ile kæ thee, and ever ready to bee even alwaies on recompences and vicissitude of things, and to give as good as one brings.

1603, Michel de Montaigne, translated by John Florio, Essays, III.5

Ka me, ka thee, is a proverb all over the world.

1821 January 8, [Walter Scott], Kenilworth; a Romance. […], volumes (please specify |volume=I to III), Edinburgh: […] Archibald Constable and Co.; and John Ballantyne, […]; London: Hurst, Robinson, and Co.