Orthonym is a legitimate word; it means the correct name of person, place or thing.
It does not appear in The Oxford English Dictionary, which styles itself as "the definitive record of the English Language" but it is in some others and a dictionary of slang.
No, "sizest" is not a standard English word. It is not found in dictionaries and doesn't have a recognized definition.
No, "moreless" is not a single word in standard English. It is not typically found in dictionaries and is not a commonly recognized term.
No, it's not in the official Scrabble dictionary.
"Piratey" is not a word found in standard dictionaries, but it is informally used to describe something related to pirates or having a pirate-like quality.
The root word for official is "officialis," which comes from the Latin word "officium" meaning duty or service.
No, it is not found in any official English dictionary.
The word "droor" is not found in numerous Dictionaries or Encyclopedia..
I found the word 'indignify' in some dictionaries but not others. The dictionaries that had indignify define it as a verb: 'to treat disdainfully or with indignity' (obsolete).
No, "sizest" is not a standard English word. It is not found in dictionaries and doesn't have a recognized definition.
No, "moreless" is not a single word in standard English. It is not typically found in dictionaries and is not a commonly recognized term.
generic
There is no such word as "gayism". The word "Gay" originally means "beautiful" according to all official English dictionaries. The discrimination of homosexual people is called homophobia, not gayism.
According to word sense perpetuous is an adjective that means rare. However this word is not found in other dictionaries such as dictionary.com and Webster
No, it's not in the official Scrabble dictionary.
Yes, official is an adjective.
Official is the correct spelling!
No, "ta" does not appear in any official English dictionaries because it is not a word. "Ta" is used as a short version of the word "Thanks". It looks like it came from English, but it's actually from the Danish word "Tak" meaning "Thank you".