  The radiation of linear momentum imparts a recoil (or "kick") to the center
of mass of a merging black hole binary system. Recent numerical relativity
calculations have shown that eccentricity can lead to an approximate 25%
increase in recoil velocities for equal-mass, spinning binaries with spins
lying in the orbital plane ("superkick" configurations) [PRD 10 (2020) 024044
(arXiv:1910.01598)]. Here we investigate the impact of nonzero eccentricity on
the kick magnitude and gravitational-wave emission of nonspinning, unequal-mass
black hole binaries. We confirm that nonzero eccentricities at merger can lead
to kicks which are larger by up to ~25% relative to the quasicircular case. We
also find that the kick velocity $v$ has an oscillatory dependence on
eccentricity, that we interpret as a consequence of changes in the angle
between the infall direction at merger and the apoapsis (or periapsis)
direction.
