Third-person singular simple present indicative form of labour. (verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "labours" in a sentence
"The more I observe Lady C---- the more surprised I am at the romantic feelings she still indulges, and the illusions under which she labours; -- yes _labours_ is the suitable word, for it can be nothing short of laborious, at her age, to work oneself into the belief that love is an indispensable requisite for life."
"The most Obama has to show for his labours is an opening round of direct talks between the two sides, currently on hold."
"The great error under which Mr. Godwin labours throughout his whole work is the attributing of almost all the vices and misery that prevail in civil society to human institutions."