late 14c., "an account brought by one person to another; rumor, gossip," from Old French report "pronouncement, judgment" (Modern French rapport), from reporter "to tell, relate" (see report (v.)).
By early 15c. as "informative statement by a reputable source, authoritative account." In law, "formal account of a case argued and determined in court," by 1610s. The meaning "formal statement of results of an investigation" is attested by 1660s; sense of "teacher's official statement of a pupil's work and behavior" is from 1873 (report card in the school sense is attested by 1913, American English). The meaning "resounding noise, sound of an explosion or of the discharge of a firearm" is from 1580s.
late 14c., "to make known, tell, relate," from Old French reporter "to tell, relate; bring back, carry away, hand over," from Latin reportare "carry back, bear back, bring back," figuratively "report," in Medieval Latin "write (an account) for information or record," from re- "back" (see re-) + portare "to carry" (from PIE root *per- (2) "to lead, pass over"). Early 15c. as "to submit" (to an authority, etc.). Meaning "to name someone as having offended somehow" is from 1885.