1. Nose; ihu more, snub nose, snub-nosed person. 2. Ihuihu cape, reef; ihuihu - many reefs, dangerous for boats. 3. Ihu moko, to die out (a family of which remains only one male without sons); koro hakamao te mate o te mahigo, he-toe e-tahi tagata nó, ina aana hakaara, koîa te me'e e-kî-nei: ku-moko-á te ihu o te mahigo, when the members of family have died and there remains only one man who has no offspring, we say: ku-moko-á te ihu o te mahigo. To disappear (of a tradition, a custom), me'e ihu moko o te tagata o te kaiga nei, he êi, the êi is a custom no longer in use among the people of this island. 4. Eldest child; first-born; term used alone or in conjunction with atariki. Vanaga.

1. Nose, snout, cape T (iju G). Po ihuihu, prow of a canoe. P Pau.: ihu, nose. Mgv.: ihu, nose; mataihu, cape, promontory. Mq., Ta.: ihu, nose, beak, bowsprit. Ihupagaha, ihupiro, to rap on the nose, to snuffle. 2. Mgv.: One who dives deep. Ta.: ihu, to dive. Churchill.

Sa.: isu, nose, snout, bill. Fu., Fakaafo, Aniwa, Manahiki: isu, the nose. Nuguria; kaisu, id. Fotuna: eisu, id. Moiki: ishu, id. To., Niuē, Uvea, Ma., Ta., Ha., Mq., Mgv., Pau., Rapanui, Tongareva, Nukuoro: ihu, id. Rarotonga: putaiu, id. Vaté: tus, id. Viti: uthu, nose. Rotumā: isu, id. ... usu and ngusu ... serve as transition forms, usu pointing to isu the nose in Polynesia and ngusu to ngutu the mouth, which is very near, nearer yet when we bear in mind that ngutu the mouth is snout as well and that isu the nose is snout too ... Churchill 2.

The eldest son of king Hotua Matua is the one who rules the 4th quarter and the one who will succeed the king, while the youngest son will rule the 1st quarter (spring). The youngest son is like a shark, but the eldest son is like a 'nose', ihu (who dives deep, ihu).

The long nose of the shark is what comes first. All 4 children are one and the same, just personifications of different ages.

Atariki should be the precursor of the spring shark. And maybe 'the shadow king' can be regarded as an opposite to the similarly sounding Matariki (the Pleiades), given we translate that word as mata-riki, 'the rulers of light' - mata are eyes, as we can see in e.g. normal tagata glyphs. Atariki could be watched for in the morning sky and Matariki in the sky of evening.