aggrandize
verb
[ əˈɡrandʌɪz ]
• increase the power, status, or wealth of.
• "an action intended to aggrandize the Frankish dynasty"
Origin:
mid 17th century (in the general sense ‘increase, magnify’): from French agrandiss-, lengthened stem of agrandir, probably from Italian aggrandire, from Latin grandis ‘large’. The ending was changed by association with verbs ending in -ize.