Hiku

Tail; caudal fin. Hikukio'e, 'rat's tail': a plant (Cyperus vegetus). Vanaga.

Hiki

To flex the knees lightly, as used to do the youths of both sexes when, after having stayed inside for a long period to get a fair complexion, they showed themselves off in dances called te hikiga haúga, parading on a footpath of smooth stones, with their faces painted, lightly flexing their knees with each step. Vanaga.

Tail fin G (? hiku). Churchill.

Hiki kioe (Cyperus vegetus), a plant whose roots were eaten during times of famine and the stems of which were used for medicinal purposes. Barthel 2. 

Pau.: Hiki. 1. To fondle. Mgv.: hiki, to dandle. Ta.: hii, id. Mq.: hiki, id. 2. To flee. Mq.: hiki, flight. Pau.: Fakahihiu, to scare away, Ma.: whiu, to drive. Churchill.

Mgv.: Hiki, to commence or to finish mat weaving. Mq.: hiki, to finish mat weaving. Churchill.

Redirected by Wikipedia I found this plant when I searched for Cyperus vegetus. Its 6 very thin serrated long blades makes you think, indeed. How many notches are there? 360?