GC: n

S: http://www.wisegeek.com/what-is-personnel-training.htm#didyouknowout (last access: 2 September 2014); http://persmin.gov.in/otraining/Index.aspx (last access: 2 September 2014).

N: mid-15c., “protraction, delay,” verbal noun from train (v.). From 1540s as “discipline and instruction to develop powers or skills;” 1786 as “exercise to improve bodily vigor.” Training wheels as an attachment to a bicycle is from 1953.

N: OED – http://www.etymonline.com/index.php?allowed_in_frame=0&search=training&searchmode=none (last access: 5 September 2014)

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S: