UNDERPIN'NING, participle present tense Placing stones under the sills for support.
UNDERPIN'NING, noun
1. The act of laying stones under sills.
2. The stones on which a building immediately rests.
Webster's Dictionary 1828
UNDERPIN'NING, participle present tense Placing stones under the sills for support.
UNDERPIN'NING, noun
1. The act of laying stones under sills.
2. The stones on which a building immediately rests.