向有權力的人請願
這一支就是核心畫面的日常版本：對面站的是市長、校長或公司。
noun · B2
Someone who writes, organises, or signs a petition — a written request, usually signed by many people, asking a person or group in power to do something or change something.
請願者；連署人
核心畫面
The parts do the work here: petition plus -er, the one who asks, with petition going back to Latin peto, to ask or seek. So picture someone standing in front of whoever has the power to decide, holding a written request. The two meanings differ only in who is standing opposite - an office or a court - and in both, this is the side that asks, never the side that decides.
「petitioner」可以拆成 petition（正式提出要求）加 -er（做這件事的人），而 petition …更多收起
「petitioner」可以拆成 petition（正式提出要求）加 -er（做這件事的人），而 petition 再往回追是拉丁文 petō「要求、尋求」。所以核心畫面可以想成：一個人拿著寫好的要求，站到有權力決定的人面前。兩個意思的差別只在對面站的是誰——一邊是市長、學校、公司，一邊是法院。不管哪一邊，他都是先開口要求的那一方，不是做決定的那一方。From the word’s history
From petition plus the -er ending that names the person who does something; petition itself goes back through Old French to Latin petitionem, from peto, to ask or seek. The modern picture is still exactly that: the one who asks.
由 petition 加上 -er（做這件事的人）組成；petition 再往回是拉丁文 petītiōnem，來自 petō「要求、尋求」。今天的畫面沒有走遠：就是「開口要求的那個人」。
Wiktionary entry for 'petitioner' (noun), etymology_text supplied in the evidence packet: 'From petition + -er', with the tree Latin petō > petītiōnem > Old French peticiun > English petition.
Two branches
向法院提出聲請的一方
同一個動作，只是對面換成法院，而且這個位置被寫成一個固定的角色名稱。
noun · C1
In law, the person who brings a case to a court and formally asks the court to decide it, or to look again at a decision made earlier.
聲請人（法律）