Etymyriad

Etymyriad shows where words come from. Pick a word and it draws a family tree of its ancestors and descendants, backed by a sourced, citable dataset.

etymology + myriad: a myriad of word origins.

Status

The Indo-European part of Wiktionary is loaded and browsable at /tree/[lang]/[headword], which draws a bounded family tree around one word.

Architecture

docs/ARCHITECTURE.md covers the architecture, the data model, and the reasoning behind them. docs/DESIGN.md describes the UI's visual design.

Development

Prerequisites: Node 22+, uv, git, and a native Postgres server (see the local Postgres notes in CLAUDE.md).

# 1. Start local Postgres, create the role/database (one-time), apply schema
sudo systemctl start postgresql
make db-init
make db-apply

# 2. ETL (Python 3.13, managed by uv)
cd etl && uv sync
uv run etymyriad all

# 3. Web app (frontend + API)
cd web && npm install && npm run dev

make help lists every target, including db-snapshot and db-restore for rewinding a bad local load without a full ETL reload.

Licensing

etymyriad carries two licenses: one for the code, one for the data.

• Source code (etl/, web/, db/): MIT, see LICENSE.
• Derived etymology dataset: CC BY-SA 4.0, inherited from its sources. (see below)

Data sources and attribution

The dataset is built from:

• Wiktionary: the underlying lexical and etymological content, dual-licensed under CC BY-SA 4.0 and the GFDL.
• Wiktextract / kaikki.org (Tatu Ylönen): a machine-readable extraction of Wiktionary, distributed under the same terms.

Because the dataset is a derivative of Wiktionary, any redistribution of the data (a database dump, an export endpoint) must:

1. Attribute Wiktionary and its contributors.
2. Share alike: license the redistributed data under CC BY-SA 4.0.
3. Indicate changes made during normalization.

On the site, each word's detail card links to its Wiktionary page. Every edge stores its Wiktionary origin in the edge.anchor column, and the source_ref() function turns it into a full citation.

UI theme

The site's light/dark color palette is Flexoki by Steph Ango.