The noun for “ship”, attested only in the plural (balîk) and objective (balku) forms (SD/247, PM/151). Its plural form indicates that it is a strong-noun (Strong I), so its final vowel must be short. In theory its final vowel could be any of a, i or u, each of which would be replaced by long î in plural nouns. However, its attested objective form uses the variant objective-with-syncope form balku instead of ordinary *baluk. Since the Adûnaic syncope seems only to occur for nouns with two identical short vowels, this indicates the singular form of this word is balak.
* balaknoun. ship