revise, correct, decide
訂 centers on making something right through words or judgment: revising text, correcting errors, or deciding on a final version.
訂 combines 言 (word, speech) with 丁, which likely contributes the sound and the idea of arranging or fixing. Together they suggest correcting or deciding through words.
Words (言) and a nail-like tool (丁) come together: imagine using a nail to pin down the final, corrected version of a document.
For テイ, picture a teacher's table where you revise your essay: table -> テイ, and you correct your work there.
correction; revision; amendment
revision (of text); alteration; change
revision of a text (by comparison of variant sources); emendation; recension
Error Checking and Correcting; ECC
error correction
error-correcting encoding
error-correcting protocol
error-correcting memory
Error-Correcting Code; ECC
correction; revision
second revision; revised edition
second revised edition
revising (and supplementing)
enlarged and revised edition
revision and expansion (of a work); revision and enlargement
enlarged and revised edition
major revision
revised and enlarged (edition)
revision history
revised edition