parsimony
definition
extreme reluctance to use resources or expenditure of money
example
His parsimony was evident when he chose to repair his old car instead of buying a new one, despite having the funds to do so.
synonyms
stinginessfrugalitythriftiness
word origin — from Latin 'parsimonia', meaning 'sparingness', from 'parsus', the past participle of 'parcere', meaning 'to spare'