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Know the root. Know the word.

One root unlocks dozens of words.

Most English words are built from a handful of ancient roots. Learn the root — and the words decode themselves. Forever.

Play Chapter 1: Chron

No account needed · ~11 minutes

One root. Many words.

ROOT CHRON Greek · “time”
chronology the science of arranging events in time order
chronic persisting over a long period of time
anachronism something placed in the wrong time period
synchronize to make two things happen at the same time
chronicle a factual account of important events in time order

How it works

  1. 1
    Read the root

    Each chapter decodes one root — its origin, sound, and core meaning.

  2. 2
    Recall it.

    You type answers — active retrieval that makes words stick, not passive recognition.

  3. 3
    Own it forever

    Once a root clicks, every word built from it is readable on sight. You decoded the code.

Free to start · New roots added regularly · Words that stick

Start with Chapter 1 — free