Patrologia Latina Database allows you to search text containing variations on a search term by using the * (asterisk) or ? (question mark) wildcard characters.

Truncation

Truncation searching allows you to retrieve documents containing variations on a search term. The * character can represent one or more characters in a search term. To execute a truncation search, type the first few letters (stem) of the keyword followed by an asterisk (*). When executing a phrase truncation search, you can truncate any word in the phrase.

Single character wildcard

The ? character represents a single character in a search term. You can use the ? character to represent a single character anywhere in your word or phrase.