ABSTRACT The history of the Slavic word for ‘morning’ constitutes an old problem of Slavic etymology. Forms such as OCS utro, Cr jȕtro, R утро, Cz jitro ‘morning’ as well as the adverb OCS zaustra ‘in the morning’, Bg зáстра etc. certainly continue the root PIE *h2eu̯s- ‘(morgens) hell werden’. Consequently, an explanation of the attested forms needs to account for the following three issues: (1) the loss of the root final sibilant in most of the Slavic forms; (2) the acute tone on the root syllable; (3) the presence of a word-initial glide j in some Slavic languages. The present article deals with these problems. By starting from a holokinetic r-stem both the loss of the root final sibilant as well as the acute tone on the root syllable are explained as resulting from contamination of different stem or root variants respectively. The occurrence of a word initial glide, on the other hand, is explained by a transfer within syntagmatic expressions. One of the advantages of the proposed scenario is that all the posited changes may be paralleled by developments elsewhere in Slavic or Indo-European.

中文翻译：

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关于“早晨”的斯拉夫语：*(j)u(s)tro

摘要 斯拉夫语“早晨”一词的历史构成了斯拉夫语词源的一个老问题。OCS utro, Cr jȕtro, R утро, Cz jitro 'morning' 以及副词 OCS zaustra 'in themorning'、Bg зáстра 等形式肯定延续了词根 PIE *h2eu̯s- '(morgens) hell werden'。因此，对经证明的形式的解释需要考虑以下三个问题：（1）大多数斯拉夫形式中的词根最终咝音的丢失；(2) 根音节上的急音；(3) 在一些斯拉夫语言中存在词首滑音 j。本文就这些问题进行了探讨。通过从全动 r-词干开始，词根最终咝咝音的丢失以及根音节上的锐音都被解释为分别由不同词干或根变体的污染引起的。另一方面，单词初始滑音的出现是由句法表达式中的转移来解释的。提议情景的优势之一是所有假定的变化都可能与斯拉夫语或印欧语其他地方的发展并行。