The Collaborative International Dictionary
Underbrace
Underbrace \Un`der*brace\, v. t.
To brace, fasten, or bind underneath or below.
--Cowper.
Wiktionary
underbrace
vb. (context transitive English) To brace, fasten, or bind underneath.
Usage examples of "underbrace".
The shipyards, however, were a hive of activity, the wrights working throughout the nights as well as the days: fifty of the Dragonships were measured and fitted thwartwise with wide, raftlike sections of heavy planks pinned to the underbracing, to span across from topwale to topwale and jut a yard beyond either side.