equivocate
definition
to use ambiguous language to conceal the truth or avoid committing oneself
example
When asked about his plans, he chose to equivocate and said he was still thinking about it.
synonyms
waffleprevaricatedodge
word origin — from Latin 'aequivocare' meaning 'to call equally, to use ambiguous language', from 'aequus' (equal) + 'vocare' (to call)