'Manumission' definitions:

Definition of 'manumission'

From: WordNet
noun
The formal act of freeing from slavery; "he believed in the manumission of the slaves"

Definition of 'Manumission'

From: GCIDE
  • Manumission \Man`u*mis"sion\, n. [L. manumissio: cf. F. manumission. See Manumit.] The act of manumitting, or of liberating a slave from bondage. "Given to slaves at their manumission." --Arbuthnot. [1913 Webster]