From shama'; announcement -- to cause to hear.
see HEBREW shama'
H2045. hashmauth
הַשְׁמָעוּת noun feminine a causing to hear (properly Aramaizing Infinitive Hiph`il; Ges§ 53l Sta§ 304 a); — ׳לְהַשׁ אָזֳנ֑יִם Ezekiel 24:26 to cause ears to hear, i.e. bring tidings in person (? read דָממ֫לַת+?ZMG 1viii (1903), 416).