It seems also that the regular equation of 'primitive' tribal customs with the earliest forms of European prehistoric culture provided an acknowledgement of common humanity, but one which was appropriately abridged and indirect.

A primitive custom, I know, but I am sure you understand?

Here we have only country dances and primitive customs harking back to feudal times.

When Ne Mieek begged you to touch the other Martian, did you think it was only a primitive custom?

After the various modifications of the Rule of St. Francis, the Observants (who existed as an independent branch of the Order prior to 1897) adhered to the primitive custom of going unshod.

He introduced in his church the primitive custom of the osculum pacis and the agape celebrated as a common meal with broth.

Amy, my dear, put this dish on; Mr Clennam will excuse the primitive customs to which we are reduced here.

Please forgive our primitive customs.

The universal habit of writing, and perpetual recourse to written contract, further modified primitive custom and ancient precedent.

Waldo decides that living with Nadara under primitive moral customs would be wrong, and determines not to take her as his wife until they can return to civilization.