The Collaborative International Dictionary
Spiring
Spiring \Spir"ing\, a.
Shooting up in a spire or spires. ``The spiring grass.''
--Dryton.
Spiring
Spire \Spire\, v. i. [imp. & p. p. Spired; p. pr. & vb. n.
Spiring.]
To shoot forth, or up in, or as if in, a spire.
--Emerson.
It is not so apt to spire up as the other sorts, being
more inclined to branch into arms.
--Mortimer.
Wiktionary
spiring
a. Shooting up in a spire or spires.