往上加的那一格
這一族就是核心畫面本身：一格的大小，以及讓數字往上跳一格的動作。
noun · B2
The amount by which a number, a value, or a quantity goes up in one step, especially when it goes up in equal steps again and again.
增量；每次增加的量
核心畫面
A staircase instead of a slope. A value does not slide smoothly upward: it jumps, holds still, and jumps again, and every jump is the same size. The increment is that one jump — not where you started, not where you end up, just the size of one step.
increment 可以想成一道樓梯，不是斜坡。數字不是平順地往上滑。它跳一格、停住、再跳一格，而且每一格一樣大。i…更多收起
increment 可以想成一道樓梯，不是斜坡。數字不是平順地往上滑。它跳一格、停住、再跳一格，而且每一格一樣大。increment 指的就是那一格：不是起點，不是終點，只是「一步有多大」。From the word’s history
From Latin incrementum, from increscere, made of in- plus crescere, to grow. The word has carried the idea of a bit of growth added on from the start.
Wiktionary 記錄 increment 來自拉丁文 incrēmentum，再往上是 incrēscō，由 in-（往裡）加 crēscō（生長）組成，跟 increase 同源。也就是說，「往上長出一段」這個意思從一開始就在字裡面，後來才固定成「加上去的那一段有多大」。
Wiktionary, packet source_ref kaikki:3f6f69a190036ae4:209471028:19409 — etymology_text: From Middle English encrement, from Latin incrementum, from increscere, from in- + crescere (grow).
Two branches
薪水表上的那一格
把同一道樓梯放進薪資制度：薪水不是慢慢漲，是每年往上跳固定的一格。
noun · B2
A fixed amount that is added to someone's pay at regular times, usually once a year.
定期加薪的金額