Reference for Bekhorot 118:15

ודלמא דעשר עילוייהו

Or perhaps [we can argue] seeing that the eleventh is not reached till the tenth has already established itself [as the tithe],<span class="x" onmousemove="('comment',' The tenth having already gone out before the eleventh, thus becoming the tithe automatically.');">¹¹</span>

Jastrow

Jastrow