'shore-related' is a Modern English compound formed from 'shore' + 'related'. 'shore' originates from Old English (e.g. 'scora' / 'sċor') meaning 'coast' or 'bank'. 'related' comes from Latin via Old French: from Latin 'relatus' (past participle of 'referre') through Old French 'relater', where the parts conveyed the idea of 'carried back' and later 'connected'.

'shore' developed from Old English words like 'scora' meaning 'coast' and evolved into the Middle and Modern English 'shore'. 'related' developed from Latin 'relatus' through Old French 'relater' into Middle English 'relaten' and the past-participial adjective 'related', and the compound 'shore-related' is a modern English formation combining these elements.

Originally, 'shore' meant 'coast' (a strip of land by the water) and 'related' (from Latin roots) originally carried the sense of 'brought back' or 'referred', but by modern English 'related' means 'connected to'. Combined as 'shore-related', the phrase now means 'connected to the shore'.