my dearest partner of greatness' in act 1 scene 5.
-emotive superlative adjective 'dearest' is a term of endearment, and acts as a clear depiction of how valued Lady Macbeth is by her husband.
-noun 'partner' creates a sense of sincere equality
-the lexical choice 'greatness' may connote ambition, and as they are 'partner(s)',
-potentially hinting that said compatibility will serve as the couple's hamartia.