Archaisms are most frequently encountered in poetry, law, and ritual writing and speech. Their deliberate use can be subdivided into literary archaisms, which seeks to evoke the style of older speech and writing; and lexical archaisms, the use of words no longer in common use. Archaisms are kept alive by these ritual and literary uses and by the study of older literature. Should they remain recognised, they can be revived, as the word anent was in this past century.
Archaisms are frequently misunderstood, leading to changes in usage. One example is the use of the archaic familiar second person singular pronoun "thou" to refer to God in English Christianity. Although originally a familiar pronoun, it has been misinterpreted as a respectful one by many modern Christians. Another example is found in the phrase "the odd man out", which originally came from the phrase "to find the odd man out", where the verb "to find out" has been split by its object "the odd man", meaning the item which does not fit.
The compound adverbs and prepositions found in the writing of lawyers (e.g. heretofore, hereunto, thereof) are examples of archaisms as a form of jargon. Some phraseologies, especially in religious contexts, retain archaic elements that are not used in ordinary speech in any other context: "With this ring I thee wed." Archaisms are also used in the dialogue of historical novels in order to evoke the flavour of the period. Some may count as inherently funny words and are used for humorous effect.