nothing more than(syn.: only • He was merely trying to help.merriam-webster.com • …no boy wanted to be on record as considering a girl a major fox only to discover that she considered him merely cool.
Not merely decorative, the crisscrossing slats and fins variously filter light and provide privacy. • Many merely desire a pleasant afternoon perusing the exhibitions in their local gallery. • Many of the deep-sea fishes, for example, have pathetically weak skeletons and terribly flabby bodies—in extreme cases they are the consistency of gelatin and seem to be composed merely of mouth and stomach. • …because of technology what in the past would have taken days took merely hours.); without any other reason etc.(wiktionary.org); only, just, and nothing more(wiktionary.org)
wholly, entirely(16th-20th c. • It is not forgot, since the acute and distinct Arminius was perverted meerly by the perusing of a namelesse discourse writt'n at Delf, which at first he took in hand to confute. (1644, John Milton, Areopagitica) wiktionary.org)