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Narten present is a proposed inflectional class of the Proto-Indo-European verb, named after the Indo-Iranianist Johanna Narten who posited its existence in 1968. It is characterized by accent on the root in all of the person-number forms. Roots having Narten presents always possess a surface accent, having a lengthened grade R(ḗ) in the singular active, and a full-grade R(é) in the rest of the active forms, as well as the mediopassive. The proposed examples of roots having such ''acrostatic presents'' include the following: These forms are best reflected in Indo-Iranian and Hittite, with relics surviving in other languages, particularly in the root "to eat". ==Narten roots== In 1994 Jochem Schindler suggested the existence of what is called ''Narten roots'' – roots exhibiting a systematic *R(ḗ) ~ *R(é) ablaut in both nominal and verbal derivations, as opposed to the more common R(e) ~ R(Ø) pattern. These roots always carried a surface accent, and such ablaut is called more generally ''Narten ablaut''. The other roots would then be ''non-Narten roots'', exhibiting the R(e) ~ R(Ø) ablaut and allowing the accent to move away from the root. It has been shown that verbal roots exhibiting Narten ablaut occur in the same morphophonological environments as the roots with mobile accentuation and, furthermore, that nominal stems exhibiting acrostatic Narten ablaut *R(ḗ) ~ *R(é) occur in the same morphophonological environments as roots undergoing the more usual R(ó) ~ R(é) type. This insight has led to the development of modern theories regarding the relation of PIE accent, ablaut and the resulting ablaut classes: all roots, suffixes and inflectional endings (desinences) can be inherently "accented" or not, and the surfacing stress (i.e. the accent of the PIE word) falls on only one syllable, depending on the interplay of underlying accentuation of the combining morphemes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Narten present」の詳細全文を読む スポンサード リンク
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