Based on races, new words formed by adding one letter at the beginning or end:
a - acers b - arecas c - braces d - cabers e - scarce f - cadres g - cedars h - scared i - crease k - facers l - farces m - cagers n - graces o - arches p - chares r - chaser s - eschar t - search u - cerias v - ericas y - crakes z - creaks
