"disowning" in the noun sense
1. disownment, disowning
refusal to acknowledge as one's own
"disowning" in the verb sense
1. disinherit, disown
prevent deliberately (as by making a will) from inheriting
2. disown, renounce, repudiate
"She renounced her husband"
"The parents repudiated their son"
Source: WordNet® (An amazing lexical database of English)
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