延续
yánxù · HSK 4
continue
➡️ 延 = extend/prolong + 续 = continue; together: extend-continue → go on, last
延 carries the sense of stretching or prolonging (as in 延长 lengthen), and 续 means to join on or carry forward (as in 继续 keep going). The compound stacks two near-synonyms for emphasis: something that keeps stretching onward.
延 — 廴 (long stride) + 㥯/丿 + 止 (foot)
延 originally depicted a foot (止) on a road or path (廴), suggesting walking a long way. From this came the meanings 'to extend,' 'to prolong,' and 'to delay.' The modern form retains 廴 on the left as the semantic clue for movement and extension.
续 — silk radical 糹+ 賣 (sell, phonetic)
续 is the simplified form of 續. The silk radical 糹 signals the original meaning of joining threads end-to-end, while 賣 served as the phonetic component. From 'splicing silk' the meaning broadened to 'continue, connect, extend' in general use.