tenuity（n.） 英 [te'njʊɪtɪ] 美 [ten'juətɪ] "want of substantial thickness," early 15c., tenuite, from Old French tenuite, from Latin tenuitas "thinness, slenderness, fineness, smallness," from tenuis "thin" (see tenuous).该词起源时间：15世纪初
