a fortiori

[ ah fohr-ti-oh-ree; English ey fawr-shee-awr-ahy, ey fohr-shee-ohr-ahy ]
/ ɑ ˌfoʊr tɪˈoʊ ri; English eɪ ˌfɔr ʃiˈɔr aɪ, eɪ ˌfoʊr ʃiˈoʊr aɪ /

adverb Latin.

for a still stronger reason; even more certain; all the more.

British Dictionary definitions for a fortiori

a fortiori
/ (eɪ ˌfɔːtɪˈɔːraɪ, -rɪ, ɑː) /

adverb

for similar but more convincing reasons if Britain cannot afford a space programme, then, a fortiori, neither can India

Word Origin for a fortiori

Latin