No.
It is an import into the English language from Latin and is - nowadays - confined to mathematical or philosophical discussions.
I belive it's I, my, mine
Ergo is just another word for therefore, or hence. Technetium as a pure element is virtually nonexistent in nature, ergo it was one of the last elements to be identified.
The most common choice for a Latin equivalent to the English 'therefore' is ergo. The Latin term most often is rendered into English as 'accordingly,' 'consequently', 'then', or 'therefore'. This is its use as an adverb. The word 'ergo' also has a use as a preposition. In that use, it's translated as 'on account of, because of'.
Therefore
About 5 to 6 times.
Thus , ergo ,
21 can not be divided by 2, ergo it can not be a common factor with 72
No. Conversation is an abstract noun, as it is intangible.
hence
No, the label "archaic" means that a word is no longer in common use and is considered outdated or old-fashioned. It is not related to the formality or casualness of its usage in writing or conversation.
Conversation is a noun.
In Geordie slang, "wor" is a term of endearment meaning "our" or "my" when referring to someone close to you like a friend or family member. It's often used in casual conversations or friendly banter.