saw, turn (lathe), grind
挽 centers on a back-and-forth or rotating motion to shape or reduce material: sawing, turning on a lathe, or grinding. The common thread is using a tool to cut or wear something down.
挽 combines 扌 (hand) with 免, which likely contributes the sound and may relate to pulling or drawing back, fitting the sawing and turning actions.
A hand 扌 beside 免: imagine a hand pulling a saw back and forth, or turning a lathe, grinding material away.
For バン, picture a hand sawing through a thick wooden plank with a loud 'bannn' sound: bannn -> バン.
recovery; regaining; getting back; retrieval; restoration; revival
to saw
elegy; funeral song
sawyer
to have no customers (of a geisha, prostitute, etc.); to have no engagements
coffee mill; coffee grinder
(mixture of) ground beef and pork
(mixture of) ground beef and pork
restoring one's impaired reputation; regaining one's honor; redeeming oneself
freshly ground (coffee, pepper, etc.)
sawing lengthwise (timber, lumber)
to saw
sawhorse; sawbuck
quern; hand mill
powdered green tea (steamed and dried before being stone-ground)
turned article; lathe work
sawyer's shed
sawyer's song (a traditional woodcutters' work song)
coarsely ground (e.g. coffee, grain); minced (e.g. meat)
arabiki; arabiki sausage; coarsely ground sausage