ROOFTREE
ridge, ridgepole, rooftree
(noun) a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters
Source: WordNet® 3.1
Etymology
Noun
rooftree (plural rooftrees)
The primary beam of a roof, ridgepole; hence, the roof. [from 14th c.]
• Now for me the woods may wither, now for me the rooftree fall. — Tennyson.
(figuratively) A home; household.
Source: Wiktionary
Roof"tree`, n.
Definition: The beam in the angle of a roof; hence, the roof itself.
Now for me the woods may wither, now for me the rooftree fall.
Tennyson.
Source: Webster’s Unabridged Dictionary 1913 Edition