Quaternary and Quadrivial

Quaternary adjective - Consisting of or especially arranged in sets of four.

Quadrivial and quaternary are semantically related in having four of something topic. In some cases you can use "Quadrivial" instead an adjective "Quaternary".

Quaternary and quadrivial are semantically related in having four of something topic. You can use "Quaternary" instead an adjective "Quadrivial".