Parliamentary means to do with the assembly that makes a country's laws. A parliamentary committee, parliamentary privilege, parliamentary language.
Parliamentary privilege lets a member say in the chamber what would be actionable outside it, which is a real and occasionally abused protection. Unparliamentary language is what the Speaker rules out, and the list of banned words is long and comic.
1adjectiveparliamentaryTo do with the assembly that makes a country's laws.
“The bill finally passed after weeks of heated parliamentary debate.”
parliamentary is a quality.
Middle English
parlement
English
parliament
English, today
parliamentary
Built from
From parliament + -ary. parliament comes from Middle English parlement. From Middle English parlement, from Anglo-Norman parliament, parlement, parliment and Old French parlement (“discussion, meeting, negotiation; assembly, council”), from parler (“to speak”) + -ment (“-ment”) (from Latin -mentum). Compare Medieval Latin parlamentum, parliamentum (“discussion, meeting; council or court summoned by the monarch”), Italian parlamento and Sicilian parramentu.
Etymology from Wiktionary, CC BY-SA