the mind > attention and judgement > esteem > approval or sanction > commendation or praise > flattery or flattering > [noun] > quality of being flattering
smoothnessa1616
blanditude1689
smooth-tonguedness1737
silkiness1832
oiliness1833
flatteringness1894
oleosity?1920
smarminess1934
1737 J. Ozell tr. F. Rabelais Wks. II. 113 The smooth-tonguedness of the Adversary.