sinew (n.)
- amperage
- arm
- authority
- backbone
- beef
- bite
- brawn
- brawniness
- charge
- charisma
- clout
- cogency
- compulsion
- dint
- drive
- duress
- effect
- effectiveness
- effectuality
- elasticity
- energy
- force
- forcefulness
- guts
- heftiness
- huskiness
- impressiveness
- incisiveness
- influence
- ligament
- mana
- might
- mightiness
- moxie
- muscle
- muscularity
- musculature
- nervousness
- physique
- pillar
- pizzazz
- poignancy
- poop
- potence
- potency
- potentiality
- power
- powerfulness
- prepotency
- productiveness
- productivity
- puissance
- pull
- punch
- push
- stamina
- steam
- strength
- superiority
- superpower
- tendon
- thew
- tone
- trenchancy
- validity
- vehemence
- vigor
- vim
- virility
- virtue
- virulence
- vitality
- wattage
- weight