You can picture a loop of rope flying out, dropping over something, and shutting tight as the rope is pulled. That one movement holds the whole word: the thing that does it, the act of doing it, and the circle you draw on a screen to catch a shape the same way.
可以想成一個動作：一個繩圈甩出去，落下來罩住東西，然後一拉就收緊。這個字的每一層都在這個動作裡。一層是那條會收緊的繩子本身。一層是把它甩出去套住的動作。還有一層搬到了螢幕上——滑鼠畫的那一圈，把不規則的圖形圈起來抓住，用的是同一個畫面。
From the word’s history
English took lasso from Spanish lazo, which goes back to Latin laqueus, a noose or snare. It is a doublet of lace, and the shared picture is a cord formed into a loop.
英文的 lasso 來自西班牙文 lazo，再往上是拉丁文 laqueus「圈套、活結」。它跟英文的 lace（繩帶）同源。可以想成：兩個字共同的畫面，就是一條繞成圈的繩。
Wiktionary entry for lasso (Spanish lazo < Latin laqueus; doublet of lace), packet evidence source_ref kaikki:3f6f69a190036ae4:810413068
登入就可以看每一支怎麼連回核心畫面。