Declension with esox name = salmon celtic name

Esox

(P)es-ak(s)> Esaks > Esax > Esox = rapid fish (celtic Akus- rapid< > Grec Okus (?) and celtic Di-aku = lazy = no rapid : Old Welsh Diauc and Old breton Dioc)

Esox – Exo Out of

the salmon is a jumper-fish

I find a latin fish with Exo-coetus = Exocet = [the fish] go out of residence (water) a king of  flying fish

So Eks (out of) and Akus (quick) = Eks-Akus > Exaks > Esax > Esox

The fish go out of (water) quickly ?

Esox

What is the parallell between Esox/Salmon and Esox Lucius (Pike) ?

Esox

I find parallell too with Esox/Salmon with Sturgeon = a migrant fish (?)

Esox = a sharp/pointed fish (?) Ok- Sharp

(P)es-Oks > Esoks > Esox (Welsh Hogi sharp) see Cam(b)-ox = Chamois : with sharpened-horn curved (?)

Esox = the good one “Esu-“

Esu-Ako> Esakus >Esaks > Esax > Esox