予 YO - previous, in advance
侍 JI, samurai - samurai
止 SHI, to(meru), to(maru) - stop
匹 HITSU, hiki - compare, alone, counter for animals
幻 GEN, maboroshi - illusion, phantom, vision
Add a single stroke to each of these to make another character.
矛 MU, hoko - halberd, spear
待 TAI, ma(tsu) - wait
正 SEI, SHOU, tada(shii), masa(ni) - correct, just, exact
四 SHI, yo(tsu), yo(ttsu), yo, yon - four
幼 YOU, osana(i) - very young, infantile, childish