Labour

Middle English: from Old French labour (noun),  labourer (verb), both from Latin labor ‘toil, trouble’.

1. work hard; make great effort.”they labored from dawn to dusk”
2. have difficulty in doing something despite working hard. “King labored against confident opponents”

• move or proceed with difficulty.”they labored up a steep, tortuous track”
• (of an engine) work noisily and with difficulty.”the wheels churned, the engine laboring”
• (of a ship) roll or pitch heavily.”the seas ran high, and the ship labored hard”

TAXES

Middle English (also in the sense ‘estimate or determine the amount of a penalty or damages’, surviving in tax): from Old French taxer, from Latin taxare ‘to censure, charge, compute’, perhaps from Greek tassein ‘fix’.

1. a strain or heavy demand.”a heavy tax on the reader’s attention”
2. make heavy demands on (someone’s powers or resources).”she knew that the ordeal to come would tax all her strength”
3. a compulsory contribution to state revenue, levied by the government on workers’ income and business profits, or added to the cost of some goods, services, and transactions.”higher taxes will dampen consumer spending”