In 1967 Dmitri Borgmann made his way from UGLY to BEAUTIFUL by means of dictionary definitions:

UGLY — OFFENSIVE
OFFENSIVE — INSULTING
INSULTING — INSOLENT
INSOLENT — PROUD
PROUD — LORDLY
LORDLY — STATELY
STATELY — GRAND
GRAND — GORGEOUS
GORGEOUS — BEAUTIFUL

Kipling called words “the most powerful drug used by mankind.”