@9267545d: The word "superficial" was first used in literature in the late 14th century. The first sentence it appeared in is from the Middle English poem "Pearl," written by an anonymous author:

"Bot in myn hert anoon upristeth tho

Of hire, that is fayrest, and eek moost free,

That I say wel, in al the toun, pardee,

Had nevere been no wight so welcome as she;

For she was gentil, sothly, as a dove,

And of good moche, and hadde a look so lyte,

As though she ne sholde do nothyng but pleye,

And superficial, with alle, debonaire."

Translation: "But in my heart immediately arises then / Of her, who is fairest, and also most free, / That I say well, in all the town, by God, / Had never been no wight so welcome as she; / For she was gentle, truly, as a dove, / And of good manners, and had a look so mild, / As though she should do nothing but play, / And superficial, with all, debonair."