licit

Etymology

From Latin licitus (“lawful”), perfect participle of licet (“[it] is permitted”, impersonal verb).

adj

1. Not forbidden by formal or informal rules.
   Undated, Pope Honorius III Solet Annuere (anonymous translator), Let it not be in any way licit to anyone among men to infringe this page of our confirmation, or to contravene it with rash daring.
   You seem to have been very much offended because your father talks a little sculduddery after dinner, which it is perfectly licit for him to do, […] 1896, Robert Louis Stevenson, “Chapter 4”, in Weir of Hermiston
   [T]he vanity of efforts to deter humanity from following this licit and highly profitable mobility, clearly indicate the limits of their [leaders'] power. 2008 July 27, Jeremy Seabrook, “Obama and the illusion of leadership”, in The Guardian
2. (law) Explicitly established or constituted by law.
   The contract validly made and consummated is dissolved by death alone. However, the Church must determine what is required for a valid and licit marriage contract. 1913, Joseph Selinger, Catholic Encyclopedia, Moral and Canonical Aspect of Marriage