All 4 Uses of

elaborate
in
Anna Karenina

This was the ultimate belief on which all the systems elaborated by human thought in almost all their ramifications rested.†
Part 8 *

elaborated = added details or explained in detail

Although her dress, her coiffure, and all the preparations for the ball had cost Kitty great trouble and consideration, at this moment she walked into the ballroom in her elaborate tulle dress over a pink slip as easily and simply as though all the rosettes and lace, all the minute details of her attire, had not cost her or her family a moment's attention, as though she had been born in that tulle and lace, with her hair done up high on her head, and a rose and two leaves on the top of it.†
Part 1

He looked at her hair done up high, with the long white veil and white flowers and the high, stand-up, scalloped collar, that in such a maidenly fashion hid her long neck at the sides and only showed it in front, her strikingly slender figure, and it seemed to him that she looked better than ever—not because these flowers, this veil, this gown from Paris added anything to her beauty; but because, in spite of the elaborate sumptuousness of her attire, the expression of her sweet face, of her eyes, of her lips was still her own characteristic expression of guileless truthfulness.†
Part 5

When the ceremony of plighting troth was over, the beadle spread before the lectern in the middle of the church a piece of pink silken stuff, the choir sang a complicated and elaborate psalm, in which the bass and tenor sang responses to one another, and the priest turning round pointed the bridal pair to the pink silk rug.†
Part 5

Definitions:

(1) (elaborate as in: elaborate on your plan)
add details or explain in detail
(2) (elaborate as in: an elaborate design)
having details and complexity -- sometimes fancy or ornate
Depending upon it's context, this sense of elaborate can additionally imply that details make something either:
- more special than others of its kind in a good way
or:
- more complicated than necessary in a bad way
(3) (elaborate as in: an elaborate wink)
to exaggerate an action

At times, this sense of elaborate can further imply that an action was exaggerated by prolonging it (performing it more slowly than normal).
(4) (meaning too rare to warrant focus)
meaning too rare to warrant focus