AUTHENTIC, AUTHENTICATE
ADJECTIVES
1543 — RIGHTEOUS genuine, authentic; true, correct, exact → US sl.
1776 — PUKKA authentic, true; certain, reliable; proper, socially acceptable
1814 — COPPER-BOTTOMED thoroughly sound, genuine, authentic, trustworthy
1882 — ALL WOOL AND A YARD WIDE authentic; totally trustworthy; thoroughly honourable
1888 — FAIR DINKUM authentic, genuine, honest, straightforward → Aust. & NZ colloq.
1888 — SQUARE DINKUM authentic, genuine, honest, straightforward → Aust. & NZ colloq.
1889 — SIMON-PURE authentic, real, genuine
1894 — STRAIGHT DINKUM authentic, genuine, honest, straightforward → Aust. & NZ colloq.
1905 — FAIR DINK authentic, genuine, honest, straightforward → Aust. & NZ colloq.
1913 — ALL WOOL, A YARD LONG AND A YARD WIDE authentic, totally trustworthy; thoroughly honourable
1916 — DINKY-DI authentic, genuine, honest, straightforward → Aust. & NZ sl.
NOUNS
1794 — THE GENUINE ARTICLE something held to be an authentic or excellent example of a particular type
1815 — THE SIMON PURE the authentic, real, or genuine thing
1832 — THE REAL SIMON PURE the authentic, real, or genuine thing
NOUNS, PERSON
1794 — THE GENUINE ARTICLE a person held to be an authentic or excellent example of a particular type
1815 — THE SIMON PURE an authentic, real, or genuine person
1832 — THE REAL SIMON PURE an authentic, real, or genuine person
VERBS
1746 — QUALIFY to authenticate; to prove; to make good; to testify to → Sc. & N. Eng. dial. obs.
Lexicophilia 