妥当
tuǒ dang · HSK 7
appropriate
妥 settled/proper + 当 suitable; two proper-words stacked = thoroughly appropriate
Both characters already mean fitting or proper, so 妥当 doubles down: something so suitable it is fully appropriate and ready. The 女 under a hand in 妥 hints at things being set in their right place.
妥 — claw 爫 on top + woman 女 below
妥 depicts a hand (爫) resting on a woman (女), originally suggesting calming or settling someone down. From this came the meanings 'peaceful,' 'secure,' and 'appropriate.' Today it mainly means 'proper' or 'satisfactory,' as in 妥当 (proper) and 妥协 (compromise).
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.