In 1890, the Maldivian judge and poet Sheikh Muhammad Jamaluddin connected poetry with linguistic description in two ways. First, when he described features of the Dhivehi language with the aid of Arabic linguistic theory, he used Dhivehi poetry as linguistic evidence for correct usage. Second, he authored Dhivehi-language poetry about Arabic linguistic theory. Cosmopolis scholarship relates a narrative of how the wide circulation of Sanskrit, Arabic, and/or Persian fostered a vast network of writers who authored texts in major vernacular languages like Bengali, Burmese, Javanese, Kannada, Khmer, Malay, Sinhala, Tamil, Telugu, Thai, Tibetan, Turkish, and Urdu. This scholarship suggests that authors living within a particular cosmopolis wrote in divergent vernacular languages yet were, in some sense, connected because they translated and responded creatively to the same widely circulated source texts written in Sanskrit, Arabic, and/or Persian. Yet in cosmopolis scholarship's effort to reveal understudied connections, various degrees of disconnection among writers of vernacular languages within a cosmopolis tend to be missed. One problem of overlooking disconnection among writers of vernacular languages is that readers could mistakenly conflate superculture-subculture interaction with intercultural interaction. In this article, I argue that Dhivehi-language poetry and linguistic description was inside the Arabic cosmopolis but simultaneously outside, because in circa 1890 non-Maldivians in the Arabic cosmopolis of South and Southeast Asia could not even read the Thaana script of the Dhivehi language.