can occur in other Indo-European languages. The causes of sound interchange can be different. It can be the consequence of Ancient Ablaut which cannot be explained by the phonetic laws during the period of the language development known to scientists, e. g. etc. It can be to strike stroke, to sing song, – – also the result of Ancient Umlaut or vowel mutation which comes from palatalizing the root vowel because of the front vowel in the syllable following the root (regressive assimilation), e. g. (hotian), hot to heat blood to bleed – – (blodian), etc. Sound-interchange is divided into two groups: and consonant-interchange. With the help of vowel-interchange we differentiate parts of speech, e. g. full – etc. In some cases to fill, food to feed, blood to bleed, – – vowel-interchange is connected with affixation, e. g. long – etc. Intransitive verbs and the length, strong strength, – corresponding transitive ones with a causative meaning also display vowel-interchange, e. g. to rise to raise, to sit to – – set, to lie to lay, to fall to fell. – – The type of consonant-interchange typical of Modern English is the interchange of a voiceless fricative consonant in a noun and the corresponding voiced consonant in the corresponding verb, e. g. use to use, mouth to mouth, house – – etc. to house, advice to advise, – – There are some particular cases of [k] [s] to speak speech, to break breach; – [t∫]: – – [d]: [s] [t]: defence to defend; offence to offend; – – – – etc. evidence evident, importance important, – – may be connected with vowel-interchange, e. g. etc. bath to bathe, breath to breathe, life to live, – – – Stress interchange can be mainly met in verbs and nouns of Romanic origin: nouns have the stress on the first syllable and verbs on the last syllable, e. g. `accent to – This phenomenon is explained in such way: French ac`cent.
can occur in other Indo-European languages. The causes of sound interchange can be different. It can be the consequence of Ancient Ablaut which cannot be explained by the phonetic laws during the period of the language development known to scientists, e. g. to strike – stroke, to sing – song, etc. It can be also the result of Ancient Umlaut or vowel mutation which comes from palatalizing the root vowel because of the front vowel in the syllable following the root (regressive assimilation), e. g. hot – to heat (hotian), blood – to bleed (blodian), etc. Sound-interchange is divided into two groups: and consonant-interchange. With the help of vowel-interchange we differentiate parts of speech, e. g. full – to fill, food – to feed, blood – to bleed, etc. In some cases vowel-interchange is connected with affixation, e. g. long – length, strong – strength, etc. Intransitive verbs and the corresponding transitive ones with a causative meaning also display vowel-interchange, e. g. to rise – to raise, to sit – to set, to lie – to lay, to fall – to fell. The type of consonant-interchange typical of Modern English is the interchange of a voiceless fricative consonant in a noun and the corresponding voiced consonant in the corresponding verb, e. g. use – to use, mouth – to mouth, house – to house, advice – to advise, etc. There are some particular cases of [k] – [t∫]: to speak – speech, to break – breach; [s] – [d]: defence – to defend; offence – to offend; [s] – [t]: evidence – evident, importance – important, etc. may be connected with vowel-interchange, e. g. bath – to bathe, breath – to breathe, life – to live, etc. Stress interchange can be mainly met in verbs and nouns of Romanic origin: nouns have the stress on the first syllable and verbs on the last syllable, e. g. `accent – to ac`cent. This phenomenon is explained in such way: French