from
The Collaborative International Dictionary of English v.0.48
Relieving \Re*liev"ing\, a.
Serving or tending to relieve.
[1913 Webster]
{Relieving arch} (Arch.), a discharging arch. See under
{Discharge}, v. t.
{Relieving tackle}. (Naut.)
(a) A temporary tackle attached to the tiller of a vessel
during gales or an action, in case of accident to the
tiller ropes.
(b) A strong tackle from a wharf to a careened vessel, to
prevent her from going over entirely, and to assist in
righting her. --Totten. --Craig.
[1913 Webster]