courtyoudaoicibaDictYouDict[court 词源字典]
court: [12] Latin cohors designated an ‘enclosed yard’ (it was formed from the prefix com- ‘with’ and an element hort- which also appears in English horticulture). By extension it came to stand for those assembled in such a yard – a crowd of attendants or company of soldiers; hence the meaning of cohort familiar today. But both in its original sense and as ‘retinue’ the word took another and rather more disguised path into English.

In late Latin the accusative form cohortem had already become cortem, and this passed into English via Old French cort and Anglo-Norman curt. It retains the underlying notion of ‘area enclosed by walls or buildings’ (now reinforced in the tautological compound courtyard [16]), but it seems that an early association of Old French cort with Latin curia ‘sovereign’s assembly’ and ‘legal tribunal’ has contributed two of the word’s commonest meanings in modern English.

The Italian version of the word is corte. From this was derived the verb corteggiare ‘attend court, pay honour’, which produced the noun corteggio, borrowed into English via French as cortège [17]. Other derivatives include courtesy [13], from Old French cortesie (of which curtsey [16] is a specialized use) and courtesan [16], via French courtisane from Italian cortigiana.
=> cohort, courtesy, curtsey, horticulture[court etymology, court origin, 英语词源]
court (n.)youdaoicibaDictYouDict
late 12c., from Old French cort (11c., Modern French cour) "king's court, princely residence," from Latin cortem, accusative of cors (earlier cohors) "enclosed yard," and by extension (and perhaps by association with curia "sovereign's assembly"), "those assembled in the yard; company, cohort," from com- "together" (see com-) + stem hort- related to hortus "garden, plot of ground" (see yard (n.1)). Sporting sense is from 1510s, originally of tennis. Legal meaning is from late 13c. (early assemblies for justice were overseen by the sovereign personally).
court (v.)youdaoicibaDictYouDict
"woo, offer homage," as one does at court, 1570s; see court (n.). Related: Courted; courting.