Based on seats, new words formed by adding one letter at the beginning or end:
b - aesst c - basest d - basset e - bastes f - beasts g - castes h - cestas i - stades k - steads l - tsades m - teases n - feasts p - safest r - sagest s - stages t - hastes u - siesta v - tassie w - skates y - stakes
