Correct spelling, explanation: safely is an English adjective that comes from the Latin form salvus, which could be translated as uninjured. Later, the word appeared in Old French as sauf and then it entered English, first in the form of save, and then, in Middle English as safe, which later became safely.

Definition of safely:
1. adverb – in a safe way, without any danger and harm,
Despite the storm, the pilot managed to land safely, which made everybody feel relieved.

Collocations with safely:
A few popular collocations with safely are: safely say, return safely, and travel safely.
Finally, I can safely say that no one will find me and I can start a new life.
Of course, I don’t approve of your trip to this faraway country, but the most important is that you will return safely.
If you want to travel safely, always fasten your seat belt.

Incorrect spelling, explanation: a lot of English users confuse the word safely with another word from the same word family, which is safety. As a result, while forming an adverb of the adjective safe, a number of people misspell it as safetly instead of safely. It’s a mistake as safety is a noun and safely is an adverb.

Incorrect spelling

Incorrect spelling

Incorrect spelling

Incorrect spelling