This glyph has two parts, the main part is the standing figure which Metoro called niu, and then at left bottom what Metoro usually called hanga, which among other things means bay - e.g. Hanga Nui, the Big Bay (close to Toatoa):

(While searching for the word hanga among my word lists I found ha'ari = 'coconut palm' according to Henry. Might there be a connection? This Tahitian ha'ari, could, however, be either hangari or hakari, because both ng and k was written as ' on Tahiti.)

Thinking about the Vikings, the Swedish word 'vik', and the word 'week' it seems quite possible that the sign hanga indicates the same thing, a bay or a bend in the outline of the coast. As I earlier has proposed I believe that the week is bent in the middle, i.e. in Wednesday (the day in the middle of the week where there is a turn). A kind of confirmation of this idea seems to be illustrated by the sign of hanga in this glyph.

Notably there is a hanga also in period no. 7 (Eb3-22) of the Keiti year. This hanga is written towards the right, otherwise it looks quite similar. "Atua-metua mated with Riri-tuna-rei and produced the niu." Is this the topic of period no. 7? The rei is present (Eb3-20) and the sign hanga could allude to the tuna (eel).

What you bend downwards (as Wednesday in the middle of the week) may end in salty water (cfr the correspondences in China).

Indeed I am beginning to believe that the glyph Eb7-10 is expressing that the tuna from the salty sea has created the coconut palm as its offspring. It has inserted its huki into the bottom of niu.

Also I find that hanga not only means bay, fishing spot but also to want, to love.