Literary notes about diphthong (AI summary)
The term "diphthong" has been employed in literature as a precise linguistic tool to analyze and compare vowel sounds across different languages and historical contexts. For example, one instance discusses how the Sanskrit diphthong e cannot generally be rendered by the long â in Latin, highlighting cross-linguistic transcription issues [1]. In other cases, the diphthong au, as seen in the word augo, is examined in contrast to its Greek counterpart, underlining subtle phonetic distinctions [2] [3]. Finally, a discussion of Anglo-Saxon eáge and Old High German augâ illustrates the evolution of vowel sounds, pointing to a labial diphthong—specifically a radical u raised to au—thereby demonstrating the intricate considerations in historical phonology [4].