1. Combining diacritics occur in Angerthas Erebor as well : a circumflex accent numerals 1. 2. The circumflex accent , " tvirtagal " changes from weaker and lower to stronger and higher. 3. The modern usage of the circumflex accent became standardized in the 18th or 19th century. 4. No attempt is usually made to reproduce the accentuation contrast between acute and circumflex accents . 5. The acute accent was pronounced with rising intonation, while the circumflex accent had a falling intonation. 6. In an unstressed position, the opposition of the two accents is neutralized and reflected by a circumflex accent . 7. The circumflex accent can be used to mark the contraction of two vowels, especially two " i "'s. 8. Circumflex accents are removed on " i " and " u " if they are not needed to distinguish between homographs.9. For example, the character U + 1EBF ( ? ), used in Vietnamese, has both an acute and a circumflex accent . 10. The tonal accents that emerged from this process are called " acute accent " and " circumflex accent " in Balto-Slavic linguistics.