P Sirach 30:20 :ܐܝܟ ܡܗܝܡܢܐ ܕܕܡܟ ܠܘܬ ܒܬܘܠܬܐ‏ : like a eunuch who sleeps with a virgin
See the entire entry for mhay/ēman adj. trustworthy, faithful