Spoken Languages

In Eberron, languages reflect culture and geography; a dwarf raised in Breland might not know Dwarvish, but a halfling raised in the Mror Holds might. The historical development of languages and cultures also explains the scripts used to write various languages. For example, the Orc language is written using the Goblin script (rather than Dwarvish, as stated in the PHB), because the orcs of Khorvaire learned writing from the goblins.

Common is the language of the Five Nations and the language of trade in Khorvaire, known by most of its people. Goblin was the trade language of the goblin empire of Dhakaan and survives as the primary language in Darguun, Droaam, and the Shadow Marches. Goblin displaced the Orc language; the people of the Shadow Marches typically speak Goblin, and Orc is an exotic language (see the Exotic Languages of Eberron table). Members of all races in Xen’drik speak Giant and use it as their trade language. Infernal is the common tongue of all fiends. Infernal is sometimes called “Khyber’s Speech,” while Celestial is “the tongue of Siberys.”

You can exchange a language granted by your race for a different language from the Standard Languages of Eberron table. If your halfling was raised in the Mror Holds, you might replace Halfling with Dwarvish to reflect that background.

House Script & Cypher

House Script

House Script is a secret Language spoken an written by members of each House. The Houses each have their own individual version of this script designed to keep its IP secret from the uninitiated. Knowing one house’s script does not allow you to decipher the any other House Script

Key response

House script is also often used as an informal method to checking that someone claiming to be a member of a house is indeed one. Agreements between houses gives certain call and response passwords with House scripts which act as a confirmation of identity between House agents.

Lyrandar Pilot: “Nazdar shok” Cannith Maker: “Darim” Lyrandar Pilot: “Good to meet you friend, let us commence negotiations!”

Gaining House Script

Any character with an intelligence above 10 who is or was a member of a House gains the additional language “House Script (House Name)“.

Link to original
See House Script & Cypher for more details