(pseudo-archaic, nonstandard) Yourselves: a plural of the normally archaic pronoun thyself.

(archaic, literary, dialectal) yourself (as the object of a verb or preposition or as an intensifier); reflexive case of thou

(Yorkshire) thyself.

(also philosophy) Be aware of your own strengths and limitations.

Honorific alternative letter-case form of thyself, sometimes used when referring to God or another important figure who is understood from context.

Attend to your own defects before presuming to advise others about theirs.