Solicitor (French, atourner, to attorn, or turn over to another). One legally qualified to manage matters in law for others, and to prosecute or defend others, as the case may be. A solicitor is one who solicits or petitions in Courts of Equity on behalf of his clients. At one time solicitors belonged to Courts of Equity, and attorneys to the other courts.
From and after Act 36, 37 Vict. 1xvi. 87, “all persons admitted as solicitors, attorneys, orproctors. ... empowered to practise in any court, the jurisdiction of which is hereby transferred to the High Court of Justice, or the Court of Appeal, shall be called Solicitors of the Supre...e Court.” (1873.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894