Strong's #647: apostasion (pronounced ap-os-tas'-ee-on)
neuter of a (presumed) adjective from a derivative of 868; properly, something separative, i.e. (specially) divorce:--(writing of) divorcement.
Thayer's Greek Lexicon:
̓́
apostasion
1) divorce, repudiation
2) a bill of divorce
Part of Speech: noun neuter
Relation: neuter of a (presumed) adjective from a derivative of G868
Usage:
This word is used 3 times:
Matthew 5:31: "his wife, let him give her a writing of divorcement:"
Matthew 19:7: "command to give a writing of divorcement, and to put her away"
Mark 10:4: "suffered to write a bill of divorcement, and to put her away."