However, here are some related words and concepts that you might consider:
Related Nouns:
* Beggar: A synonym for "mendicant," more commonly used.
* Pauper: A person who is extremely poor.
* Almsgiver: A person who gives charity to the poor.
* Charity: The act of giving money or other assistance to the poor.
Related Verbs:
* Beg: To ask for something earnestly, especially money.
* Solicit: To ask for something, often by going from person to person.
* Panhandle: To beg for money in a public place.
Related Adjectives:
* Indigent: Extremely poor, lacking necessities.
* Destitute: Completely without money, possessions, or support.
* Impoverished: Made poor.
While these words are not strictly part of a "word family" for "mendicant," they are closely related in meaning and usage.