There are a great many languages spoken across the islands of the world, but to travel anywhere, one should have at least a basic grasp of one of five. These are, in no particular order: Qariyyu, the effectively-official language of Yashdar; Phaeroian, the common language of Oma (and the language of religion in Einir and Gykken); Arrahng, the lingua franca of southern Yandjee, particularly Nukambi; Kshamakaraktha, the chief academic and religious language across Sayintha; and Tehapuan, spoken (of course) on Tehapu but also quite common on other islands across Malehi.
Aj-jama sa' ub'i, na darumayabsi.
"This land is ours, and we must protect it."
Qariyyu nouns, verbs, and adjectives are notable for their classification along bodily lines—different parts of the body are associated with different meanings, selected for by means of prefixing. It is from the Yashdari family, and is most intelligible with modern Tharrabic (from which the formal language has borrowed much grammar and vocabulary); it has also borrowed a fair few words from the unrelated Xixrut language. Qariyyu is written with the ayizar, a series of glyphs representing whole roots and marked with various diacritics to create full words.
Kai berkhau kloud-i theilys?
"Have you ever travelled in the dark forests?"
Phaeroian verbs—specifically in the Caerydic dialect, the de facto preferred version—have three separate forms for active, middle, and passive voice. Nouns have three cases: nominative, subjective, and either ergative or accusative; and four genders: common, masculine, feminine, and neuter. Fortunately, if you learn the basic verb forms, the rest of the language is relatively easy to work with. The New Phaeroian Syllabary is used across the region of Oma, though it competes with the Voerian abugida in Einir and the Cerementi script in eastern Aion.
Djangu ik upul berrahng.
"We know the way."
Arrahng is from the Koorra family, and partially intelligible with Kereyatj, Danyoweka, Ginyaoka, and Raikauka. It is notable for its multiple noun classes with defined plurals, most of which are ignored in the trade dialect; its lack of tense in verbs; its impressive list of converbs and aspect markers; and its use of pitch in vocabulary. Arrahng is written using the alphabet bearing the same name.
Idhabhaikravuh.
"You must be cautious in your actions."
Kshamakaraktha is from the Dhunic family, and is spoken across the equatorial archipelago of Sayintha. It has quite an impressive set of verbal classifiers, to the point where entire sentences can be incorporated into a single word; it also has split ergativity, with nouns taking an ergative-absolutive alignment and verbs a nominative-accusative one. (This sometimes gets extra tricky, because a great many nouns are derived from verbs.) It is written using the Thakrau script, an abugida derived from the complex knots used by early travellers to mark numbers and accounts.
Ngaingi wi'a to hōna ie to rūwhē, mataia wi'a to māhi.
"Remember the waves and the winds; dream at your destination."
Tehapuan, the most spoken Malehinese languages, has four alignments for verbs (ergative, locative, active, and observative), grammatical declension using articles, and a very simple phonology—albeit one that for some Malehinese languages is quite overstocked. The Tehapuan syllabary drew inspiration from the Booladjirra abjad that preceded it, but is considered more pleasant to look at.
The Gmalic languages use ranking on verbs instead of pronouns; have four ancestral noun classes based on body, water, earth, and spirit; and tend to favour ablaut.
Gmalic: Qikhnyr, Qmaalsiju
Northern: Muill
Central: Old Central+, Rhaeth, Petheu, Orric
Southern: Voerian+, Cuollesan, Lamian
The Koorra languages are rich in converbs; have in-group and out-group pronouns; and typically possess over twenty noun classes apiece.
Brush: Arrakaye, Dhanyatil, Irrukur
Tjubbakarl: Tjubbakarl
Arrahng: High Arrahng+, Low Arrahng, Kereyatj, Danyoweka, Ginyaoka, Raikauka
The Nekortian languages are notable for their multipersonal pronouns; pragmatic markers; and a system of conjunctions with an almost Boolean precision.
Coastal: Eralca, Ulmanda
Silvan: Nio
Eastern: para-Nyarawanyiga
Aggrabantur: Aggrabantur
Theigarian: West Theigarian+, East Theigarian+
Ghibaki: Ghibaki+
The Omaic languages have a triconsonantal root system (with nouns derived therefrom), four genders, and a specific class of adjectives that functions as postpositions.
Phaeroian: Old Caerydic+, Old Aeoric+, Caerydic, Aeoric, Iamic+
Uganic: Uganic
Haakan: Hayaru, Hara
The Shmetic languages are agglutinative (or were), with an animate/inanimate distinction and ergative/absolutive cases for nouns and adjectives, and mirative and potential verb constructions.
Truzithan: Truzithan+
Melerian: Melerian+, North Melerian+
Lewidzio-Drezaddic: Old Lewidzian+, Draconic+, Lewidzian, Drezaddic
The Yashdari languages have a unique use of prefixes to represent parts of the body, from which whole new classes of nuance are opened up, as well as a somewhat glottal phonology.
Northern: Classical Tharrabic+, Modern Tharrabic, Old Qariyyu+, Qariyyu
Southern: B'eweyu, Irdirid
Western: Tarviye
There is a surprising number of languages across the world with few or no surviving relatives. Nevertheless they do still possess some fascinating features.
The Kamar language, spoken by some 600,000 people in the Narragundi Empire on Yandjee, attaches time prefixes (including specific times of day) to nouns instead of verbs; has strong infixing morphology, derivational and otherwise; and marks verbs as transitive, active, or inactive.
The Xucsu language, spoken by about 30,000 Ziéco on Eileiwa, is notable for its focus on alienable and inalienable possession (even in verbs and adjectives); its use of pospositional clitics, which stack up at the end of a noun phrase; and its use of full and partial reduplication to mark "plurative" and "singulative" aspects of words.