One of the mysteries of the English language finally explained.
To free (a slave), release (a captive); = "manumit".
Early 16th century; earliest use found in John Fitzherbert (d. 1531). Back-formation from manumission, after e.g. commise, premise, remise. In forms in -ss- probably after (or perhaps independently from) classical Latin manūmiss-, past participial stem of manūmittere manumit.
In this article we explore how to impress employers with a spot-on CV.