Based on alts, new words formed by adding one letter at the beginning or end:
b - blast blats c - clast talcs e - least setal slate stale steal stela taels tales teals tesla f - flats h - halts laths shalt i - alist litas tails k - stalk talks m - malts smalt n - slant o - altos lotas tolas p - plats splat u - sault talus y - salty slaty
