1857 Henfrey Bot. §95. 59If the leaflets are not in pairs, but alternate with each other, the leaf is alterni-pinnate. 
alterni-
combining form 
Etymology: New Latin, from Latin alternus alternate — more at alternate 
 : alternate : alternately 
< alternifoliate >
< alternipetalous >
< alternipinnate >
< alternifoliate >
< alternipetalous >
< alternipinnate >