英语词源字典 - 在线词源网站

attend (v.)[attend 词源字典]: c. 1300, "to direct one's mind or energies," from Old French atendre (12c., Modern French attendre) "to expect, wait for, pay attention," and directly from Latin attendere "give heed to," literally "to stretch toward," from ad- "to" (see ad-) + tendere "stretch" (see tenet). The notion is of "stretching" one's mind toward something. Sense of "take care of, wait upon" is from early 14c. Meaning "to pay attention" is early 15c.; that of "to be in attendance" is mid-15c. Related: Attended; attending.[attend etymology, attend origin, 英语词源]
minister (v.): early 14c., "to perform religious rites, provide religious services;" mid-14c., "to serve (food or drink);" late 14c. "render service or aid," from Old French menistrer "to serve, be of service, administer, attend, wait on," and directly from Latin ministrare "to serve, attend, wait upon" (see minister (n.)). Related: Ministered; ministering.
servant (n.): c. 1200, "personal or domestic attendant," from Old French servant "servant; foot-soldier," noun use of servant "serving, waiting," present participle of servir "to attend, wait upon" (see serve (v.)).

Meaning "professed lover, one devoted to the service of a lady" is from mid-14c. In North American colonies and U.S., the usual designation for "slave" 17c.-18c. (in 14c.-15c. and later in Biblical translations the word often was used to render Latin servus, Greek doulos "slave"). Public servant is attested from 1670s.