Tell-truth

When we know a tale-teller is neer us, we are very carefull what we ſay or doe. Why? we have alwaies a tell-truth in our boſoms, where ever we go, or whatſoever we do; who will tell all to the Judge of all the world, that we think, ſpeake, or do[…]

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But page 58. he thinks he hath for ever undone my reputation as an Expoſitor, even as much as I, and thouſands more, believe his Anſwer hath undone his reputation for a Tell-truth.

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"I am no tell-tale." "It is a tell-truth that we require. You think that you are betraying your fellows but I say that you are not. You are defending the realm and you are defending them too. It is for their wellbeing and their protection that as much as possible be known. In knowledge lies safety."

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In short, Ovid's Imagination in his Metamorphoſes never made more unaccountable Changes, than would appear thro' ſuch a Tell-truth Mirrour […]

Source: wiktionary