Lexicon for New Ithkuil, version 1.0

TL;DR — The full root lexicon of Ithkuil — a constructed language built to express thought with maximum precision and minimum ambiguity.

⬇ Download the archived copy — kept here so the document survives its source going dark. Explicitly free / author-released / CC.

Over 6,000 roots, 570 pages.

Ithkuil is a constructed language designed not for speaking but as an experiment: how precisely could a language encode cognitive distinctions if it were engineered rather than evolved? The morphology is famously dense — a single word can carry what English needs a clause for — and famously unusable at conversational speed.

The lexicon opens with the grammatical roots: the Carrier Root, the General Demonstrative Root, and onward.

An extraordinary artifact of one person’s sustained obsession, and a genuine probe of the Sapir–Whorf question.

Where this came from

• Will Manidis’s “most underrated PDF” thread

570 pages. A copy is archived locally against link rot; the header links the original source.