An archaic or rare variant of 'adamant,' meaning extremely hard, unyielding, or impossible to persuade or change.
Variant spelling of 'adamant,' which comes from Latin 'adamans' (the hardest substance, diamond), from Greek 'adamantos.' The 'ad-' prefix in this variant emphasizes the intensifying nature of the term.
This archaic spelling shows how English has experimented with different forms—'adhamant' appears in older texts but was eventually standardized to 'adamant,' similar to how 'connexion' gave way to 'connection.'
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