延缓
yán huǎn · HSK 7
to postpone
🐢 延 extend + 缓 slow = stretch it out slowly, i.e. postpone
延 means to extend or prolong; 缓 means slow or unhurried. Put them together and you stretch a deadline out at a slow pace — you defer and put it off. yán huǎn even sounds drawn-out, like the delay itself.
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.
缓 — silk radical 纟 + 爰 (yuán, phonetic)
A semantic-phonetic compound. The silk radical 纟 suggests loosening or slackening cords, while 爰 (yuán) supplies the sound, shifted to huǎn. From the literal sense of 'loose threads' it broadened to mean slow, relaxed, or to delay.