also Omayyad, member of a Muslim dynasty which ruled the Caliphate 661-750 C.E. and in 756 C.E. founded an emirate in Spain, 1758, from Arabic, from Umayya, proper name of an ancestor of Muhammad from whom the dynasty claimed descent.

of persons, "performing part of a professional task but not having professional training or credentials," by 1961 in education, from para- (1) + professional (adj.). As a noun, "person without professional credentials or training to whom a part of a professional task is delegated," by 1968.

1590s, "having a good memory," from French memorieux or directly from Medieval Latin memoriosus, from Latin memoria (from PIE root *(s)mer- (1) "to remember"). By 1856 (Sir Richard F. Burton, with whom it seems to have been a pet word) as "worthy to be remembered."

also doormat, "heavy mat placed before a door for use in cleaning the shoes by those entering," 1660s, from door + mat. Figurative use in reference to persons people "walk all over" or upon whom they (figuratively) clean their boots is by 1861.

early 15c., in law, "the senior justices of the peace," whose presence was necessary to constitute a court, from Latin quorum "of whom," genitive plural (masc. and neuter; fem. quarum) of qui "who" (from PIE root *kwo-, stem of relative and interrogative pronouns).

The traditional wording of the commission appointing justices of the peace translates as, "We have also assigned you, and every two or more of you (of whom [quoram vos] any one of you the aforesaid A, B, C, D, etc. we will shall be one) our justices to inquire the truth more fully." The justices so-named usually were called the justices of the quorum.

Meaning "fixed number of members of any constituted body whose presence at a particular meeting is necessary to transact business" is recorded by 1610s.