Ourself
The personal pronouns in English take various forms according to number, person, case and natural gender. Modern English has very little inflection of nouns or adjectives, to the point where some authors describe it as an analytic language, but the Modern English system of personal pronouns has preserved some of the inflectional complexity of Old English and Middle English.
Ourself (pronoun)
: myself (as used by a writer or speaker who is referring to themself as we).
“In the present study, we will limit ourself to the simplest of cases.”
Ourself (pronoun)
: oneself.
“We should love our neighbor as ourself.”
Ourselves (pronoun)
Us; the group including the speaker as the object of a verb or preposition when that group also is the subject.
“We should keep this for ourselves.”
Ourselves (pronoun)
We; intensifies the subject as the group including the speaker, especially to indicate that no one else satisfies the predicate.
“We did it ourselves.”