The spelling of the word "ENGIN" may seem peculiar, but it is actually derived from the French word "engine" and is pronounced /ˈɛn.dʒɪn/. The "g" in this word represents a "soft g" sound, as in "giant" or "gym," rather than a "hard g" as in "goat" or "give." The addition of the letter "i" after the "g" is a convention used in Middle English to indicate that the "g" is soft rather than hard. Thus, the spelling of "ENGIN" is simply a historical remnant of this convention.