Based on ears, new words formed by adding one letter at the beginning or end:
a - aers b - areas c - baser d - bears e - saber f - sabre g - cares h - escar i - scare j - serac k - dares l - dears m - reads n - erase o - fares p - fears r - agers s - rages t - sarge u - hears v - rheas w - share x - arise y - raise z - rajes
