The Latin root of “equable” is the word “aequare,” meaning “make equal.” However, the modern usages of “equable” have strayed from that sense of making parts equal. When the adjective is applied to a person, it means they have a calm and even-keeled disposition. The other usage describes things that don’t fluctuate much. For example, an equable climate is one that has very little temperature variation. Some parts of Florida and California, for example, experience largely the same temperatures throughout the year, making them popular destinations for retirees and snowbirds.