Mawson, C.O.S., ed. (18701938). Rogets International Thesaurus. 1922.
Class I. Words Expressing Abstract Relations
Section II. Relation
1. Absolute Relation
IDENTITY, sameness, identicalness, unity, selfsameness, coincidence, coalescence; convertibility; equality [See Equality]; selfness, self, oneself; identification.
CONNATURALITY, connature, connaturalness, homogeneity.
MONOTONY; tautology (repetition) [See Repetition].
FACSIMILE (copy) [See Copy]; homoousia; alter ego [L.] (similar) [See Similarity]; ipsissima verba [L.] (exactness) [See Truth]; same; selfsame, very same, one and the same; counterpart; very thing, actual thing; no other.
BE IDENTICAL &c. adj.; coincide, coalesce.
treat as the same, render the same; treat as identical; render identical; identify; recognize the identity of.
IDENTICAL; self, ilk [archaic]; the identical same &c. n.; selfsame, homoousian, one and the same; ditto.
COINCIDENT, coinciding, coalescing, coalescent, indistinguishable; one; equivalent (equal) [See Equality]; much the same, much of a muchness; unaltered.
IDENTICALLY &c. adj.; on all fours with; ibidem [L.], ibid.
Liberty and Union, now and forever, one and inseparable.Webster
All one body we, One in hope, in doctrine, One in charity.Baring-Gould
The selfsame flight, the selfsame way.Merchant of Venice