Latin origin of the word Labor (2) (labos) -oris m. (1) [work , toil, effort, industry, capacity for work; feat, work, result of labor]. (2) [hardship, fatigue, distress]; 'labores solis', [eclipse of the sun].
In spanish, Labrar = to work, to carve. A -Labrador- is a lumberjack or a farmer.
So perhaps, your name means indeed, "worker"
Hope this is accurate :o)
~Magia~