Which preposition to use with ex

as Occurrences 1%

I do not say that the names above can be regularly declined in Latin; but in English it is as easy to speak of two Dees as of two trees, of two Kays as of two days, of two Exes as of two foxes, of two Effs as of two skiffs; and there ought to be no more difficulty about the correct way of writing the word in the one case, than in the other.

for Occurrences 1%

When the Ex-Pacha (Ex for the third time) heard that thenceforth he must depend upon his own resources, he requested that he might be taken off in the Constellation, as his life would not be safe when his adherents discovered that his American friends had betrayed him, Eaton took every precaution to keep the embarkation a secret, and succeeded in getting all his men safely on board the frigate.

in Occurrences 1%

O God, help the ol' cart, an' the ex in pertic'lar.

Which preposition to use with  ex