This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. To cause to labor excessively; to overwork.

v. To labor upon excessively; to refine unduly.

To harass with toil.

To execute with too much care.

"Conservatives are, not to overlabor the obvious, marginalized in the cultural elite, even though they are powerful in the political elite."

overwork