Abstract In Vertegaal 2017, it was argued that plene spellings(〈CV-V〉 sign sequences) in Hieroglyphic Luwian can be divided into two types: space-fillers on the one hand, and non-fillers on the other. This article focuses on plene spellings of the latter kind, as attested in texts from the Iron Age (CHLI). It is demonstrated that these non-filler plene writings are non-randomly distributed across morphemes and lexemes, indicating that this mode of spelling marks a phonetic feature. Using secure etymologies and analyses, it is proposed that non-filler (“linguistically real”) plene spellings mark the presence of long vowels or disyllabic sequences. The validity of this hypothesis is subsequently tested against less secure and doubtful etymologies as well as counterexamples. Finally, it is concluded that the hypothesis holds, thereby providing, for the first time, direct evidence for the writing of vowel length in Hieroglyphic Luwian.

中文翻译：

---

长度的迹象

摘要 在 Vertegaal 2017 中，有人认为象形文字 Luwian 中的 plene 拼写（〈CV-V〉符号序列）可以分为两种类型：一方面是空格填充，另一方面是非填充。本文侧重于后一种拼写，正如铁器时代 (CHLI) 的文本所证明的那样。结果表明，这些非填充词在词素和词素之间是非随机分布的，表明这种拼写模式标志着一种语音特征。使用安全词源和分析，建议非填充（“语言上真实的”）plene 拼写标记长元音或双音节序列的存在。该假设的有效性随后针对不太安全和可疑的词源以及反例进行了测试。最后，得出假设成立的结论，从而提供，