octarius means the pint (eighth of a gallon) in the apothecaries' system. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
octarius is pronounced /ɒkˈtɛəɹi.əs/.
Etymology
From New Latin octarius.
noun
- The pint (eighth of a gallon) in the apothecaries' system.“The college take for their standard the exchequer wine measure of the realm, which they divide into the octarius or pint, the eighth part of a gallon; the fluid ounce, equal the sixteenth part[…]”