17th Century English -eth Suffix Translator Online

What is 17th Century English -eth Suffix Translator Online?

This is a text conversion agent for the narrow, practical job of turning modern third-person singular verbs into archaic -eth forms, and turning archaic -eth text back into modern English. It also handles a small set of familiar pronoun and phrase pairs such as "you have" and "thou hast", "you are" and "thou art", "you can" and "thou canst", "it seems to me" and "methinks", and "you all" and "ye".

The scope is deliberately limited. This is a suffix and phrase converter, not a full Early Modern English translator. It does not rewrite sentence structure, invent period vocabulary, or claim historical accuracy. What it does do is apply a stated rule set consistently and show you exactly which words changed.

Key Features

• Two-way conversion. Send modern text to get -eth forms, or send archaic text to get modern -s forms back.
• Explicit rules, not a black box. The agent states the suffix rule it applies and lists every word it converted.
• Phrase pair handling. Common thou/thee/hast/art/dost/canst/wilt/methinks/ye pairs are substituted as whole phrases.
• Exact preservation. Punctuation, spacing, capitalisation patterns and any word the agent does not convert are returned unchanged.
• Unlisted-verb flagging. If a verb looks like a candidate but is not confidently convertible, the agent says so instead of silently guessing.

How to Use

1. Paste your text and state the direction, for example "to archaic" or "to modern". If you do not state a direction, the agent infers it from the text and tells you which direction it chose.
2. Read the converted text in the copyable block, then check the short change report underneath.
3. Ask for a refinement if you want a specific word treated differently, for example keeping a proper noun untouched.

Example Use Cases

• Historical fiction dialogue. Convert "She accepts the offer and abandons the plan" into archaic narration for a period-flavoured scene.
• Role-play and tabletop writing. Turn modern character actions into -eth phrasing for a 17th-century setting without rewriting the whole script.
• Reverse reading. Paste archaic -eth text from an old-style document and get modern -s forms back so it reads more naturally.

A quick before-and-after: "He accepts the terms and abandons the ship" becomes "He accepteth the terms and abandoneth the ship".

Tips for Best Results

• Keep sentences in third-person singular when you want the -eth rule to apply; "I accept" and "they accept" are not third-person singular and are left alone.
• State the direction explicitly when your text is ambiguous, such as a single word.
• Check the change report: it tells you which words were converted and which were skipped, so you can adjust wording before publishing.

FAQ

What input format does it accept?
Plain text of any length you can paste. Very long passages are handled in sections, and the agent tells you if it split the work.

How accurate is the result?
The suffix and phrase rules are applied deterministically, so the same input gives the same output. Accuracy is limited to those rules: the agent does not perform full grammatical translation, and it flags words it cannot confidently convert rather than guessing.

How is this different from some free text tools?
Some free text tools apply a fixed internal word list without showing you the rules or the changes. This agent states the rule it uses, lists every conversion, and preserves everything it does not touch, so you can verify the output yourself.