1) Disowning 2) Renunciation 3) Repudiation 1) Disowning 
Disownment is the formal act or condition of forcibly renouncing or no longer accepting one`s consanguineous child as a member of one`s family or kin. It differs from giving a child up for adoption both in that it is a social and interpersonal issue (and therefore usually takes place later in the child`s life, though children can be disowned by......
• (n.) Act of disowning.
Dis·own'ment noun Act of disowning. [ R.]
[n] - refusal to acknowledge as one`s own
disowning noun refusal to acknowledge as one`s own