The term PREFIX WITH LIFE OR LAND has a 3 letter solution of MID. The prefix MID is derived from the Old English word 'midd' meaning 'in the middle'. This prefix is often used to describe something that is in the middle of two other things, such as a midpoint or midway. It can also be used to describe something that is between two extremes, such as a middle ground. When combined with the words life or land, MID creates words such as midlife and midland, which refer to the middle of one's life or the middle of a region, respectively.