CPAHor 309:4 :ܠܚܫܒܬ݁ܢ܃ ܠܒܝܟܘ ܘܦܫܦܫܘ ܒܕܝܢܝܐ ܕܝܠܟ ܕܨܕܩܐ‏ : (grant) understanding to our thoughts and careful investigation of your just judgments
See the entire entry for pšpšw n.f. investigation