极为
jíwéi · HSK 7
extremely
🌡️ 极 = extreme/pole + 为 = to be/act, so 极为 = being at the extreme = extremely
极 is the utmost pole or limit; 为 means to be or act. Together they push a quality to its outer edge, so 极为 modifies adjectives as extremely or exceedingly, like 极为重要 = extremely important.
极 — wood radical 木 + 及 (jí, phonetic)
极 is a semantic-phonetic compound: 木 (wood) hints at the meaning, since the original sense was the ridgepole — the highest beam of a roof. 及 supplies the sound 'jí'. From 'topmost beam' the meaning extended to 'extreme, utmost, pole', as in 北极 (North Pole).
为 — simplified form of 為; from 爪 (claw/hand) over 象 (elephant)
The traditional form 為 originally depicted a hand leading an elephant, suggesting the act of doing or making work. Over time it generalized to mean 'to do, to act, for the sake of.' The simplified 为 preserves this 'do/for' meaning, with pronunciation shifting between wéi ('to be, to do') and wèi ('for, because of').