All 4 Uses

yield
in
Throne of Glass
(Auto-generated)

And if that didn't yield anything ...well, at least she'd tried.†
p. 189.8

yield = produce or give
Chaol didn't know if it was because of Endovier, or just being an assassin; whatever the cause of that unyielding rage, she could never entirely leash herself.†
p. 204.7 *

unyielding = strict, firm, or hard (not giving in, not giving way, or not giving up)

standard prefix: The prefix "un-" in unyielding means not and reverses the meaning of yielding. This is the same pattern you see in words like unhappy, unknown, and unlucky.
When the book yielded nothing, she returned to the summoning spell.
p. 309.3 *

yielded = produced
Her eyes flickered, but Dorian wouldn't yield.†
p. 165.7

Definitions:

(1) (yield as in: will yield valuable data)
to produce (usually something wanted); or the thing or amount produced
(2) (yield as in: yield to pressure)
to give in, give way, or give up
(3) (meaning too rare to warrant focus)