ar·que·bus 
(ärkə-bəs, -kwə-)
(ärkə-bəs, -kwə-)n.
Variant of harquebus.
- substituent
- substitutability
- substitutable
- substitute
- substitution
- substitutional
- substitutionally
- substitutionary
- substitutive
- substrate
- substrative
- substratum
- substruction
- substructional
- substructural
- substructure
- subsumable
- subsume
- subsumption
- subsumptive
- subsurface
- subteen
- subtemperate
- subtenancy
- subtenant