individually

Concise Oxford English Dictionary © 2008 Oxford University Press:
individual/ɪndɪˈvɪʤuəl/

▶adjective

• 1 single; separate.

• 2 of or for a particular person.

  ■ designed for use by one person.

• 3 striking or unusual; original.

▶noun

• 1 a single human being or item as distinct from a group.

  ■ informal a person of a specified kind: a most selfish, egotistical individual.

• 2 a distinctive or original person.

– derivatives
individualization (or individualisation) noun,
individualize (or individualise) verb,
individually adverb.

– origin ME (in the sense ‘indivisible’): from med. L. individualis, from L. individuus, based on dividere ‘to divide’.