Houseleek
Pronunciation : House"leek`
Part of Speech : n.
Etymology : [House + leek.] (Bot.)
Definition : Defn: A succulent plant of the genus Sempervivum (S. tectorum), originally a native of subalpine Europe, but now found very generally on old walls and roofs. It is very tenacious of life under drought and heat; -- called also ayegreen.
Source : Webster's Unabridged Dictionary, 1913