Found 2 items, similar to Undergird.
English → English (WordNet)
Definition: undergird
undergird
v 1: lend moral support to
2: make secure underneath;
“undergird the ship” [syn:
brace up]
[also:
undergirt]
English → English (gcide)
Definition: Undergird
Undergird
\Un`der*gird"\, v. t.
To blind below; to gird round the bottom.
[1913 Webster]
They used helps, undergirding the ship. --Acts xxvii.
17.
[1913 Webster]