  MAXI J1348-630 is a low mass X-ray binary discovered in 2019 during a bright
outburst. During this event, the system sampled both hard and soft states
following the standard evolution. We present multi-epoch optical and
near-infrared spectroscopy obtained with X-shooter at the Very Large Telescope.
Our dataset includes spectra taken during the brightest phases of the outburst
as well as the decay towards quiescence. We study the evolution of the main
emission lines, paying special attention to the presence of features commonly
associated with accretion disc winds, such as blue-shifted absorptions, broad
emission line wings and flat-top profiles. We find broad emission line wings in
H-alpha during the hard-to-soft transition and blue-shifted absorption troughs
at ~-500 km/s in H-beta, HeI-5876, H-alpha and Pa-beta during the bright
soft-intermediate state. In addition, flat-top profiles are seen throughout the
outburst. We interpret these observables as signatures of a cold (i.e. optical
to infrared) accretion disc wind present in the system. We discuss the
properties of the wind and compare them with those seen in other X-ray
transients. In particular, the wind velocity that we observe is low when
compared to those of other systems, which might be a direct consequence of the
relatively low binary inclination, as suggested by several observables. This
study strengthen the hypothesis that cold winds are a common feature in low
mass X-ray binaries and that they can also be detected in low inclination
objects via high-quality optical and infrared spectroscopy.
