The Latin adjectives ending in -idus generally appear beside intransitive verbs of the second conjugation and abstract nouns ending in -or, -ōris: e.g. timeō, timor, timidus. They represent, as it were, the participle, of which the original form is probably preserved in an example like acētum ‘vinegar’ : aceō. These verbs show long ē outside the present: vereor : verēcundia, valeō : valētūdō, aceō : acētum : acēscō, tābeō : tābēs : tabēscō, Lith. tyléti ‘to be silent’, OCS iměti ‘to have’. The meaning of the ē-verbs is ‘to be in a state’ and also ‘to keep in a state’.