commemorate
Pronunciation: /kəˈmɛməreɪt/
verb

Origin:
late 16th century: from Latin commemorat- 'brought to remembrance', from the verb commemorare, from com- 'altogether' + memorare 'relate' (from memor 'mindful')

Spelling help
Remember that commemorate and the related word commemoration are spelled with a double m then a single m.