soften up (?.)
- abate
- affect
- attenuate
- beleaguer
- bend
- beset
- besiege
- bias
- blarney
- blockade
- blunt
- butter
- butter up
- color
- cramp
- cripple
- cushion
- damp
- dampen
- deaden
- debilitate
- devitalize
- dispose
- dull
- ease
- encircle
- encompass
- enervate
- enfeeble
- envelop
- eviscerate
- exhaust
- extenuate
- fluff
- gentle
- get around
- gruel
- harass
- harry
- honey
- incline
- induce
- influence
- invest
- jolly
- kid along
- knead
- laxate
- lay it on
- lay low
- lay siege to
- lead
- limber
- limber up
- loosen
- mash
- massage
- mellow
- milden
- mitigate
- mollify
- move
- oil
- overdo it
- persuade
- play up to
- plump
- predispose
- prompt
- pulp
- rattle
- reduce
- relax
- sap
- shake
- shake up
- smash
- soap
- soft-soap
- soften
- squash
- string along
- stroke
- subdue
- supple
- surround
- sway
- tenderize
- tinge
- tone
- tone down
- tune down
- unbrace
- undermine
- unman
- unnerve
- unstrengthen
- unstring
- weaken
- wear down
- weigh with
- work