見当
けんとう · kentou · JLPT N3 · noun
estimate
🎯 見当 = see + hit: you look and judge where it will land
見 means see or look, and 当 means hit or match. A 見当 is the spot you judge something will land, so it means an estimate or guess. 見当がつかない means you have no idea at all.
当 — small ⺌ + crown 冖 + hand 彐 (simplified from 當: 尚 + 田)
Originally written 當, combining 田 'field' with 尚 as a phonetic. The early sense was 'to match' or 'face' a field of equal value, extended to 'correspond to', 'ought to', and 'serve as'. The simplified form 当 streamlines the upper 尚 component.