2452: New Latin Spellings: Things of the Past Aug 28, 2021

The words 'dinosaur' and 'deinonychus' both come from the same root, with the first element. The first part of 'dinosaur', coined in 1842, is from Ancient Greek δεινός (deinós) meaning 'terrible'. That said, it came to English through New Latin which has a standardized way of transliterating Greek into Latin letters, including going from Greek < ει > to Latin < ī >, and < ός > into < us >. Later, scientists stopped using (New) Latin as much—even though here it may technically be listed as being of New Latin—and even if they would, it was not with any real consistency: 'Utahraptor'. As a result, the word over 120 years later, 'deinonychus', uses <ei>.