שָׁנָה shânâh (H8138)

to fold, i.e. duplicate (literally or figuratively); by implication, to transmute (transitive or intransitive)

1) to repeat, do again, change, alter 1a) (Qal) to change 1b) (Niphal) to be repeated 1c) (Piel) to change, alter 1d) (Hithpael) to disguise oneself

a primitive root;