"I've seen thee stern, and thou hast oft beheld<BR><i>Heart</i> hardening spectacles"
Heart [from A Dictionary of the English Language]
At least 17 entries in ESTC (1755, 1765, 1773, 1775, 1784, 1785).<br>
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A Dictionary of the English Language; in Which the Words Are Deduced from Their Originals and Illustrated in Their Different Significations by Examples from the Best Writers. to Which Are Prefixed, a History of the Language, and an English Grammar. By Samuel Johnson, A. M. In Two Volumes. (London: Printed by W. Strahan, for J. and P. Knaptor; T. and T. Longman; C. Hitch and L. Hawes; A. Millar; and R. and J. Dodsley, 1755). &lt;<a href="http://estc.bl.uk/T117231">Link to ESTC</a>&gt;<br>
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Reading <u>A Dictionary of the English Language</u>. Facsimile reprint (New York, AMS Press, 1967).