1793—probably ultimately after post-classical Latin ‘mille viae ducunt homines per saecula Romam…’ (‘a thousand roads lead for ever to Rome the men…’)—the metaphor occurred in A Treatise on the Astrolabe (ca 1391), by Geoffrey Chaucer
UK—‘rhubarb’ is colloquially used to denote ‘nonsense’—originated in the theatrical practice consisting for a group of actors in repeating the word ‘rhubarb’ to represent an indistinct background conversation or the noise of a crowd
UK, 1821—‘we’ used in place of ‘I’ by a monarch or other person in power, also (frequently humorously) by any individual—originated as a loan translation from French ‘nous royal’, as used of Napoléon Bonaparte by Madame de Staël in her memoirs published in 1821
USA, 1927—denotes male vigour, especially sexual—with wordplay on ‘penis’—interestingly, via an alteration of the Latin diminutive ‘pēnĭcillus’, denoting literally a little tail, hence a painter’s brush or pencil, ‘pencil’ is derived from Latin ‘pēnis’, denoting literally a tail, hence the penis
The humorous expression ‘elbow grease’ (1639) denotes vigorous physical labour, especially hard rubbing. The corresponding French expression is ‘huile de coude’ (1761), literally ‘elbow oil’.
1762—(especially of an ancient style of writing): having alternate lines written from left to right and from right to left—from the Greek adverb ‘βουστροφηδόν’, meaning literally ‘as an ox turns (in ploughing)’, with allusion to the course of the plough in successive furrows
classical Latin ‘mare nostrum’, literally ‘our sea’: one of the names given by the Romans to the Mediterranean Sea—USA, 1824: any sea or other stretch of water belonging to, or under the control of, a nation
literal meaning, 1473: something produced or manufactured—1534: an arduous task—1810: a commotion, a fuss—1623: ‘a filthy piece of work’ is applied to a person in Shakespeare’s Timon of Athens
UK, 1849—transformation into a pumpkin; extravagant or absurdly uncritical glorification—coined after Hellenistic Greek ‘ἀποκολοκύντωσις’, the title of a travesty ascribed to Seneca, according to which the deceased Roman emperor Claudius, instead of being elevated to divine status, is changed into a pumpkin