Foreign words are those words that have roots from other languages or Simply we can define it as a word that is adopted from other language. They are normally written in Italics to identify that they are foreign. Most of these foreign words are taken from latin.
1. ab incunabulis: from the cradle 2. a bon chat, bon rat: to a good cat, a good rat (retaliation in kind) 3. a bouch ouverte: with open mouth (eagerly, uncritically) 4. ab ovo usque ad mala: from egg to apples (from beginning to end) 5. a bras ouverts: with open arms 6. ab uno disce omnes: from one learn to know all 7. a coup sur: with sure stroke (surely) 8. acte gratuit: gratuitous impulsive act 9. ad arbitrium: at will (arbitrarily) 10. ad extremum: to the extreme (at last) 11. ad majorem Dei gloriam: to the greater glory of God 12. ad patres: to his fathers (deceased) 13. ad unguem: to the fingernail (exactly) 14. ad utrumque paratus: prepared for either event 15. aegri somnia: a sick man’s dreams 16. aequam servare mentem: to preserve a calm mind 17. aequo animo: with even mind (calmly) 18. aere perennius: more lasting than bronze 19. a huis clos: with closed doors 20. a l’abandon: carelessly 21. a la belle etoile: under the beautiful star (in the open air at night) 22. a la bonne heure: at a good time (all right) 23. a la page: at the page (up to the minute) 24. alter idem: another self 25. a maximis ad minima: from the greatest to the least 26. a marveille: marvelously 27. amicus humani generis: friend of the human race 28. amicus usque ad aras: a friend as far as to the alters (a friend to the last extremity) 29. ami de cour: court friend 30. armamentum ad baculum: argument of the staff (appeal to force) 31. arrectis auribus: with ears pricked up 32. a torte et a travers: wrong and crosswise (without rhyme or reason) 33. au bout de son latin: at the end of one’s Latin (at the end of one’s mental resources) 34. au fait: to the point (socially correct) 35. au grand serieux: in all serious 36. au mieux: on the best terms (on intimate terms) 37. aurea mediocritas: the golden mean 38. auspicium melioris aevi: an omen of a better age 39. ausssitot dit, aussitot fait: no sooner said than done 40. autres temps, autres moeurs: other times, other customs 41. aut vincere aut mori: either to conquer or to die 42. bellum omnium contra onnes: war of all against all 43. bien-pensant: right minded (orthodox) 44. bon gre, mal gre: whether with good grace or bad (willy-nilly) 45. bonis avibus: under good auspices 45. brutum fulmen: insensible thunderbolt (futile threat of display of force) 47. cadit quaestio: the question drops (the argument collapses) 48. capable de tout: capable of anything (unpredictable) 49. cause sine qua non: an indispensable cause or condition 50. cheval de bataille: war-horse (argument constantly relied on) 51. comedie humaine: human comedy (the whole variety of human life) 52. comedie larmoyante: tearful comedy (sentimental comedy) 53. comagnon de voyage: traveling companion 54. compte rendu: report 55. concordia discors: discordant harmony 56. confessio fidei: confession of faith 57. contemptus mundi: contempt for the world 58. coup de maitre: masterstroke 59. coup d’essai: experiment 60. coute que coute: cost what it may 61. cri de coeur: cry of the heart 62. crise de conscience: crisis of conscience 63. crise de nerfs: crisis of nerves 64. crux criticorum: crux of critics 65. cum grano salis: with a grain of salt 66. custos morum: guardian of morals (censor) 67. de bonne grice: with good grace 68. de l’audace, encore de l’audace, et toujours de l’audace: audacity, more audacity, and ever more audacity 69. de mal en pis: from bad to worse 70. Deo favente: with God’s favor 71. de profundis: out of the depths 72. desipere in loco: to indulge in trifling at the proper time 73. Deus absconditus: hidden God (unknowable God) 74. dies faustus: lucky day 75. dies infaustus: unlucky day 76. dies irae: day of wrath 77. esprit d’le escalier: the wit of the staircase 78. faux bonhomme: false friend 79. faux-naif: affectedly simple or childlike 80. festina lente: make haste slowly 81. feux d’artifice: fireworks, or show of wit 82. folie de grandeur: delusion of greatness, megalomania 83. furor loquendi: rage for speaking 84. furor poeticus: rage for poetry 85. furor scribendi: rage for writing 86. gens du mond: fashionable people 87. guerre a outrance: war to the uttermost 88. haut gout: slight taint of decay 89. hic illae lacrimae: hence these tears 90. homme d’esprit: witty man 91. in omnia paratus: ready for all things 92. in partibus infidelium: in the land of the infidels 93. in statu quo ante bellum: just like before the war 94. januis clausis: behind closed doors 95. jeu de mots: play on words 96. ktema es ai: a possession for ever (enduring art or literature) 97. la belle dame sans merci: the beautiful lady without mercy 98. lacrimae rerum: tragedy of life 99. lapsus calami: slip of the pen 100. lapsus linguae: slip of the tongue