A more thorough explanation:

Entry for marriage in speech is a legal term that refers to a writ of entry available to a woman who had given land to a suitor who refused to marry her within a reasonable time. It is also known as causa matrimonii praelocuti.

The term causa, in general, is a Latin word that means cause, reason, or inducement. In Roman law, it is used in different senses, such as the reason for which some judicial measures were introduced by the praetor or the subjective motive, intention, or purpose of a person.

For example, causa proxima refers to the immediate or latest cause, while causa sine qua non means a necessary cause without which the thing cannot be or the event would not have occurred.

In civil law, causa is a synonym for consideration or inducement. For instance, the French Civil Code provides that an obligation without cause, or on a false cause, or on an illicit cause, cannot have any effect.

Overall, entry for marriage in speech is a legal remedy available to a woman who has been promised marriage but has not received it within a reasonable time. It is an example of how the law protects individuals' rights and interests in matters related to marriage and property.