I'm planning to give a speech in Russian where I'll say something like "imagine there's an eighth day of the week--let's call it ______."
Представьте, что прибавился еще день недели--назовем его восьмятница.
What I'm struggling with is how to make up a name for the eighth day in a way that rings true for Russians in order to make the illustration more memorable. However, I know I'm in dangerous territory as what a non-native speaker makes up as logical may not be what a native speaker would think of.
What would you name the eighth day of the week? I would like to incorporate the number eight somehow.
Восьмёрник (?)
By analogy with понедельник and вторник The logical problem with the name of the newly introduced eighth day is that понедельник in fact meansafter sunday
(old Slavic name for sunday is неделя, and нэдиля in modern Ukrainian in particular, that is inaction). When you introduce the eighth day after sunday the name of понедельник becomes redundant as it would no longer follow воскресенье aka неделя. – Баян Купи-ка Jul 17 '18 at 15:32