Main Entry: a for·ti·o·ri

Pronunciation: \ˌā-ˌfȯr-shē-ˈȯr-ˌī, ˌä-ˌfȯr-shē-ˈȯr-ē, -ˌfȯr-tē-\

Function: adverb

Etymology: New Latin, literally, from the stronger (argument)

Date: 1561

: with greater reason or more convincing force —used in drawing a conclusion that is inferred to be even more certain than another <the man of prejudice is, a fortiori, a man of limited mental vision>