Vedic Metre in its Historical Development c10.57

c10.57

125. Before dissimilar vowels final -i -ī -u -ū are regularly used with hiatus: but disyllabic prepositions followed by the augmented tenses of the verbs to which they belong, as ádhy atiṣṭhan, are used freely in combination from the normal period onwards. Other combinations in which a disyllable is the first element are also fairly common, so that the phonetic type, not the grammatical connection, appears to be the essential condition.