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whittle

[hwit-l, wit-l] / ˈʰwɪt l, ˈwɪt l /
VERB
cut away at; reduce
Synonyms
STRONGEST
diminish erode lessen pare shave trim
STRONG
carve chip consume decrease fashion form hew model mold sculpt shape undermine
WEAK
eat away wear away
Antonyms
STRONGEST
develop enlarge extend increase
STRONG
destroy neglect
WEAK
build

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.