Why friendnessly have grammatical meaning?

The word "friendnessly" is not a real English word. It doesn't have any grammatical meaning because it's not a recognized part of the English language.

It's likely a misspelling of one of these words:

* Friendly: This word describes someone who is pleasant, approachable, and kind.

* Unfriendly: This word describes someone who is not pleasant or approachable, and might even be hostile.

If you're trying to use the word "friendnessly" to express a particular idea, you'll need to choose a different word that accurately conveys your meaning.