"Wellat" Natural Recordings by Native Speakers
The word "wellat" is not a commonly recognized English word. It's possible that it may be a misspelling or a non-standard term.
However, I think you may be thinking of the word "duellest", which is not commonly used either.
But if I had to find a word close to "wellat", I would propose the word "weekday".
A weekday is any day other than a weekend day (Saturday or Sunday) when one would normally go to work or school.
Extremely knowledgeable or skilled in a particular area or subject, often requiring a great deal of study, experience, or practice.
People who send good wishes or express good wishes for someone or something, often on a special occasion, such as a birthday or wedding.
A wellhead or well hole is the point at the ground surface from which a well is drilled or dug to access water or other fluids underground within a well.