look back, review, examine oneself, turn around
顧 centers on directing attention backward or inward: looking back at the past, reviewing something carefully, or examining oneself reflectively. The idea of turning around physically is a concrete application of that same backward focus.
顧 combines 雇 (to employ, look after) and 頁 (head), suggesting the idea of turning one's head to look back or attend to something. The exact historical development is uncertain, but the component combination fits the meaning of looking back or reviewing.
The left side 雇 suggests looking after or attending to something, and the right side 頁 is a head. Picture someone turning their head to look back and review what they have done, examining themselves carefully.
For コ, imagine a person looking back and calling out 'Co!' to get their own attention: Co -> コ, as they turn around to review their actions.
customer; client; patron
adviser; advisor; consultant; counselor
looking back
recollecting; reminiscing; looking back; retrospection; review
patronage; favour; favor; custom
to look back on (the past); to reflect on; to reminisce about
favour; favor; patronage
slightest notice; slightest consideration; slightest attention; a little thought; glance
patronage; favour; favor; custom
not taking the slightest notice (of); not giving the slightest consideration (to); paying absolutely no attention (to)
woman so glamorous as to bring ruin to a country (castle) as its king (lord) is captivated by her beauty; femme fatale
showing (someone) special courtesy (to persuade them to take a post)
loyal customer; important customer
assistant counsel; deputy counsel; sub-adviser
heedless of danger; braving dangers
inability to make up one's mind due to worrying about how others will think; hesitation; wavering; vacillation
looking everywhere; looking in all four directions
retrospective exhibition; retrospective
retrospective
reminiscences; reminiscent discussion