Sīrī is the feminine singular imperative of sāra, yasīru, “to travel or proceed”; it preserves the feminine-address suffix. Arkhī is the feminine singular imperative of Form IV arkhā, yurkhī, “to slacken or release.”
In zimāmahu, zimām means rein, and -hu refers to the mount on which the two are riding. Thus, the first two commands concern the practical management of the ride, whereas the rest of the verse shifts toward emotional intimacy.
FormUnderlying verbAddressee
SīrīSāra, yasīruFeminine singular
ArkhīArkhā, yurkhīFeminine singular