A more thorough explanation:

Definition: Proneptis (proh-nep-tis) is a Latin term used in Roman and civil law to refer to a great-granddaughter. The plural form of proneptis is proneptes.

Example: When the wealthy businessman passed away, his estate was divided among his heirs, including his proneptes.

Explanation: In this example, proneptes refers to the great-granddaughters of the deceased businessman who were entitled to a share of his estate according to Roman and civil law.