IshGen 76:4 :ܐܢܫܝ̈ܢ ܕܝܢ ܠܠ̈ܐ ܣܒ݂ܪܘ ܕܐܝܟ ܓܡܠܐ ܪܡ ܗܘ݂ܐ ܘܥܠ ܐܪܒܥ ܡܗܠܟ‏ : now foolish people thought that (the snake) was as tall a tall camel and walked on four
See the entire entry for lel, lellyā/lellā adj. foolish