consummate
verb
Pronunciation: /ˈkɒnsjʊmeɪt, -sə-/
adjective
Pronunciation: /ˈkɒns(j)ʌmət/

Origin:
late Middle English (as an adjective in the sense 'completed, accomplished'): from Latin consummat- 'brought to completion', from the verb consummare, from con- 'altogether' + summa 'sum total', feminine of summus 'highest, supreme'

Spelling help
Spell consummate with a double m.