Portuguese-Latin-Japanese dictionary and grammar

The Portuguese-Latin-Japanese dictionary and grammar is a carefully produced Jesuit language book that Toranaga asks Alvito to give to Blackthorne. Its significance lies not only in the knowledge it contains but in what that knowledge might enable: Blackthorne sees the book as a way to speak directly with Toranaga, learn beyond the limits of interpretation, and eventually teach others. In a world where navigational manuals are guarded as instruments of power, this printed volume makes language itself a strategic resource.

Identity and Production

The book belongs to a larger Jesuit effort to compile, translate, print, and circulate knowledge of Japanese. At Nagasaki, the Society’s movable-type press had produced devotional books and catechisms translated into Japanese, along with works adapted from Japanese into Latin to help Japanese acolytes learn that language. Among its rarer works were a Portuguese-Japanese grammar and the companion Portuguese-Latin-Japanese dictionary, printed in Roman letters as well as hiragana. The dictionary had been begun at the Father-Visitor dell’Aqua’s order twenty years earlier, making it the result of a sustained institutional project rather than a quick reference assembled for Blackthorne’s convenience.

The book’s preparation demanded comparable time from its makers: Alvito tells Blackthorne that three of the Brethren spent twenty-seven years preparing it. In the scene of its presentation, he says it has only just been printed, at long last, and asks that it be cherished and treated well. The language of care reflects its physical and intellectual value. Blackthorne examines the print and is struck by its quality and the detail of its information; he considers it valuable enough to guard with his life.

The dictionary also stands beside, rather than simply replacing, other Jesuit language work. Father Sancho Alvarez’s Portuguese-Japanese grammar had been printed six years before the passage describing the collection, while Alvito had spent eighteen years compiling a separate, much more detailed dictionary with explanatory supplements—an unfinished work he imagined as an introduction to Japan and the Japanese. The distinction matters: the presented book is a completed, usable achievement, while Alvito’s hoped-for masterpiece remains in progress.

Presentation to Blackthorne

Toranaga initiates the gift. When Alvito comes to him with several maps showing Portuguese bases along the route from Goa, Toranaga asks whether he has also brought the dictionary. Alvito confirms that it is in his luggage and asks whether he may send for it or deliver it later himself. Toranaga directs him to give it to Blackthorne that night or the following day. The transfer is therefore not an unsolicited gesture by the Jesuits: it answers Toranaga’s request, even as Alvito presents it as a gift from God.

When Alvito later gives Blackthorne the package, Blackthorne opens it suspiciously, then responds with immediate excitement. He recognizes the book’s exceptional printing and the density of its contents, but does not accept the gift at face value. He knows Toranaga ordered Alvito to give it to him and presses the priest about what is wanted in return. Alvito says that the Father-Visitor agreed to Toranaga’s request and that the Jesuits ask only that Blackthorne value and care for the volume. Blackthorne remains distrustful of a gift that may carry political consequences, but he accepts its practical worth.

Knowledge as Power

Blackthorne measures the dictionary against the Rutter, the navigational book that can preserve a pilot’s hard-won knowledge of routes, currents, hazards, and safe passage. A Rutter is valuable because it makes experience usable by someone who has not yet sailed those waters; it can also be unreliable, deliberately misleading, and fiercely protected by the powers that possess it. Blackthorne sees the dictionary as more valuable still: a tool that could give him access to knowledge held by the Jesuits and reduce his reliance on their mediation.

That ambition has a concrete setting. Earlier, Blackthorne had drawn a rough map in sand for his listeners, explaining the Mercator projection and the limits of European geographical knowledge. The scene depends on his ability to make an account of the world intelligible through Mariko’s translation; the dictionary offers a different kind of access, directed toward Japanese words and communication. Blackthorne predicts that it could save him ten or even twenty years of learning, allow him to speak more readily, and eventually let him teach others. He imagines a direct conversation with Toranaga within six months. These are his expectations, not a confirmed result: the book opens a possibility, while the exchange leaves its practical outcome unsettled.

Political and Narrative Significance

The gift joins Toranaga’s political purposes to Jesuit expertise without making their interests identical. Toranaga has requested the book for Blackthorne; the Jesuits comply, while Alvito insists that they obey God’s orders. Blackthorne, meanwhile, interprets the gift as a transfer of knowledge that could make him less dependent on the priests. The same object thus carries distinct meanings for its giver, mediator, and recipient: an answer to Toranaga’s request, a carefully guarded product of Jesuit labor, and a potential instrument of independence.

The book also reverses the imbalance Blackthorne associates with the Rutter. Portuguese and Spanish navigational secrets are coveted because they can open routes to the New World and Asia; Blackthorne now receives, without payment, a printed work that he believes can unlock a foreign language. The exchange does not erase the political power behind the knowledge or the years invested in producing it. Instead, it makes that power tangible in a volume small enough to be carried away, studied, and perhaps passed on. Its immediate consequence is not mastery but access: Blackthorne holds a tool that may change how directly he can act and speak in Japan.