Before the standardisation of the English language into the London English of the printing presses, local northern and Scots dialect would have followed the more Scandinavian sounding pronounciation (i.e. Sch is Sk not Sshhhh)
Here is what the OED has:
Skipper - etym: Old Norse: Skipari, , Danish: Skipper, Swedish: Skeppare, Middle Dutch and Middle Low German: Schipper - from schip - i.e. Modern English: Ship.
Definition
1. The captain or master of ship, esp of a small merchant or trading vessel. A shipman.
In 15th and 16th Century: a term of mainly Scots use.
First recorded instance: 1390 The Earl of Derby's Expedition 'Hermann, skipper de Dansk'
Coxswain
from Cock - a ships boat and Swain
Def: The Helmsman of a boat; the person on board a ship having permanent charge of a boat, of which he has command unless a superior officer is present.
Examples start in the 15th century.
Here is what the OED has:
Skipper - etym: Old Norse: Skipari, , Danish: Skipper, Swedish: Skeppare, Middle Dutch and Middle Low German: Schipper - from schip - i.e. Modern English: Ship.
Definition
1. The captain or master of ship, esp of a small merchant or trading vessel. A shipman.
In 15th and 16th Century: a term of mainly Scots use.
First recorded instance: 1390 The Earl of Derby's Expedition 'Hermann, skipper de Dansk'
Coxswain
from Cock - a ships boat and Swain
Def: The Helmsman of a boat; the person on board a ship having permanent charge of a boat, of which he has command unless a superior officer is present.
Examples start in the 15th century.