entries → 噸
TSUMUGU · B2 (est.) · 字
噸 character · B2 (est.)
噸 ＝ 口 ＋ 屯
ㄉㄨㄣ · dūn
noun — ton (unit of weight)

字源 FORM — what the parts do

口空borrowed as a sound-tag for the foreign word, no meaning here
屯聲tún — gives the sounda sprout pushing up against the ground
{d,t}ITtún → dūn — the {d,t} crossing; tone shifts too
屯 tún carries the sound, worn to dūn; the 口 rides along only as a tag for the borrowed word "ton," carrying no meaning. A unit of weight: 公噸、噸位.
意 · Meanings
(本義)噸— ton — a unit of weight常用
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
頓＝ 屯 ＋ 頁dùnshares 屯 — 頓 takes 頁 for a pause, 噸 takes 口 for the ton屯túnthe sound half — 噸 adds 口, 屯 alone is the sprout