forenoon
n.
"the morning," especially the latter part of it, when business is done, c.1500, from fore- + noon.
〔李〕[fore-=before 在…前；noon n.中午⇒“（the time）before noon 午前的（时间）”→] n. ＆ a.（the time）between early morning and noon 午前（的），上午（的）
〔李〕[fore-=before 在…前；noon n.中午⇒“（the time）before noon 午前的（时间）”→] n. ＆ a.（the time）between early morning and noon 午前（的），上午（的）