| English | Latin |
|---|---|
| valid adjective [UK: ˈvæ.lɪd] [US: ˈvæ.ləd] | bonus [bona -um, melior -or -us, optimus -a -um]adjective validus [valida, validum]adjective |
| valid / convincing / well founded adjective | firmus [firma -um, firmior -or -us, firmissimus -a -um]adjective |
| validate, make valid verb | convalido [convalidare, convalidavi, convalidatus](1st) TRANS |
| validly / effectively / practically adverb | utiliter [utilius, utilissime]adverb |
| convalidation noun | convalidatio [convalidationis](3rd) F |
| depending for validity on ruling of magistrate / judge’s decision adjective | decretalis [decretalis, decretale]adjective |
| ineffective, useless, invalid adjective | inritus [inrita, inritum]adjective |
| invalid, void, of no effect adjective | irritus [irrita, irritum]adjective |
| invalidate (L+S) verb [UK: ɪn.ˈvæ.lɪ.deɪt] [US: ˌɪn.ˈvæ.lə.ˌdet] | subnervio [subnerviare, subnerviavi, subnerviatus](1st) TRANS subnervo [subnervare, subnervavi, subnervatus](1st) TRANS |
| invalidating, nullifying adjective | dirimens [(gen.), dirimentis]adjective |
| invalidly (legal) adverb | inutiliter [inutilius, inutilissime]adverb |
| legally valid adjective | efficax [efficacis (gen.), efficacior -or -us, efficacissimus -a -um]adjective |
| recognize, accept as valid / true verb | gnosco [gnoscere, gnovi, gnotus](3rd) TRANS nosco [noscere, novi, notus](3rd) TRANS |
| refute, invalidate, annul verb | infimo [infimare, infimavi, infimatus](1st) TRANS |
| remain valid / applicable verb | consisto [consistere, constiti, constitus](3rd) |
| renewal of / consent to marriage previously canonically invalid noun | convalidatio [convalidationis](3rd) F |
| sick / diseased person, invalid, patient noun | aegrotus [aegroti](2nd) M |
| sick person, invalid, patient noun | aeger [aegri](2nd) M |
| soldier discharged from army on health / other grounds, invalid noun | causarius [causarii](2nd) M |