propping

noun

1. a rigid support, as a beam, stake, or pole, placed under or against a structure or part
2. a person or thing that gives support or aid to a person, institution, etc.

transitive verb propped, propping

1. to support, hold up, or hold in place with or as with a prop: often with up
2. to place or lean (something) against a support
3. to sustain or bolster