Latin key words. Jerry Toner. 2021.

Latin key words is the easy route to mastering excellent basic Latin. 
Easy-to-learn Unit Structure gets you the words you need to know quickly and easily. One hundred easy-to-master units of 20 words each. The first 500 words account for 75% of normal conversational usage. The full 2,000 words will equip you for nearly all word occurrences in verbal and written Latin usage.