DEAD-RECKONING, noun In navigation, the judgment or estimation of the place of a ship, without any observation of the heavenly bodies; or an account of the distance she has run by the log, and of the course steered by the compass, and this rectified by due allowances for drift, lee-way, etc. DEAD'-STRUCK, adjective Confounded; struck with horror.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI