sever
[verb]
Synonyms:
- cut, cut in two, detach, disconnect, disjoin, divide, part, separate, split
- break off, dissociate, put an end to, terminate

[TahlilGaran] English Synonym Dictionary ▲

sev‧er /ˈsevə $ -ər/ verb formal
[Date: 1300-1400; Language: Old French; Origin: severer, from Latin separare; ⇒ separate²]

1. [intransitive and transitive] to cut through something completely, separating it into two parts, or to become cut in this way Synonym : cut off:
Martin’s hand was severed in the accident.
a severed rope

2. [transitive] to end a relationship with someone, or a connection with something, especially because of a disagreement Synonym : break off
sever ties/relations/connections/links etc (with/between somebody)
The two countries severed diplomatic relations.
She had severed all contact with her ex-husband.

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In everyday English, people usually say cut off rather than sever:
The end of his finger had been cut off.
The children's father had cut off all contact with them.

[TahlilGaran] Dictionary of Contemporary English ▲