v. & n.
v. 1 (also spirt) a intr. gush out in a jet or stream. b tr. cause (liquid etc.) to do this. 2 intr. make a sudden effort.
n. 1 (also spirt) a sudden gushing out, a jet. 2 a short sudden effort or increase of pace esp. in racing.
[ 16th c.: orig. unkn. ]