been mort, bene mort, beenship mort noun
1 a good woman, a gentlewoman; a rich lady: Katie, bing the mang tae the bene mort. [Katie, give the fine lady your sales pitch.] 20-.
2 the queen 19. etymology: been ‘fine, goodly, rich, gentle’ + mort ‘a woman’; sense 1 attested by DW, also found in Shelta; collected by EMcC/PS; beenship mort attested by Galloway and Perthshire and Argyleshire Tinkler-Gypsies and by BS in TDITA; sense 2 collected by Simson (1865) note:

Canadian Paul Pope (2013) cites the form bene mort ‘a gentle woman’.