Quenya 

formaitë

righthanded, dexterous

formaitë adj. "righthanded, dexterous" (PHOR, VT49:9, 31). Compare ataformaitë.

formaitë

adjective. righthanded, righthanded; [ᴹQ.] dexterous

A word for “righthanded” (VT49/11; Ety/PHOR), a combination of for- “right” and maitë “handed”. In The Etymologies of the 1930s it also meant “dexterous” (Ety/PHOR), but this was before Tolkien decided Elves where ambidextrous and equally skilled with both hands.

forma

right hand

forma noun "right hand" (VT47:6). Compare formaitë, forya.