Based on sob, new words formed by adding one letter at the beginning or end:
a - bos b - abos c - boas d - bobs e - cobs f - bods g - obes h - fobs i - bogs j - gobs k - bosh l - hobs m - bios n - obis o - jobs p - bosk r - kobs s - lobs t - mobs w - nobs y - snob
