Abstract This paper investigates the meaning and the etymology of TB pitke. Based on a philological study of Sanskrit, Chinese and Tibetan parallel texts, the meaning of TB pitke can be determined to be ‘fat, grease, oil’. TB pitke corresponds to Skt. medas- ‘fat’, Tib. tshil ‘fat, grease’ and Chin. 脂zhī ‘fat, grease’. The philological identification of the meaning of TB pitke as ‘fat, grease, oil’ opens the door to an etymological connection with PIE *pei̯H- ‘to be fat, swell’, and, based on the historical phonology of Tocharian, leads to the determination of the laryngeal as *‑h1.

中文翻译：

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TB pitke '脂肪、油脂、油'和 PIE *peih̯1-'要胖，要爆满'

摘要 本文研究了TB pitke 的含义和词源。根据对梵文、汉文和藏文平行文本的语言学研究，TB pitke 的含义可以确定为“脂肪、油脂、油”。TB pitke 对应于 Skt。medas-'胖'，Tib。tshil '脂肪，油脂'和下巴。脂zhī '脂肪，油脂'。将 TB pitke 的含义确定为“脂肪、油脂、油”的语言学识别打开了与 PIE *pei̯H-“脂肪，膨胀”的词源联系的大门，并且根据吐火罗语的历史音系，导致确定喉部为 *‑h1。