armpit, side
腋 centers on the armpit area and, by extension, the side of the body near the arm.
腋 combines the flesh radical ⺼ with 夜, which likely contributes the sound and may relate to the idea of a concealed or side area.
The flesh radical ⺼ marks a body part, and 夜 (night) suggests a hidden, dark place. Picture the armpit as the shadowy side of the body.
For エキ, imagine an armpit that is so sweaty it feels like liquid 液 (えき) is dripping from it: 液 -> エキ, and the liquid comes from the armpit.
body odor (odour); abnormal underarm odor
underarm hair; armpit hair
armpit; axilla
to rule a country requires many great men; an expensive fur coat will not be made with a single fox
stitched side of some traditional Japanese clothing; clothing with such a stitched side
robe with a round collar, stitched sides and a ran, worn by the emperor and high-ranking officials
axillary growth
axillary artery; arteria axillaris
axillary gland
leaf axil
unstitched, open side of some traditional Japanese clothing; clothing with such an open side
robe worn by military officials with a round collar, unstitched open sides and no ran