One who goes; a traveler (archaic); also possibly a dialectal term for a gutter or drainage feature.
From 'go' (Old English 'gān') + '-er' agent suffix (one who goes), or from 'gote' (watercourse) + '-er.' The agent suffix appears in 'runner,' 'walker,' 'singer.'
The suffix '-er' is endlessly productive in English—we can attach it to almost any verb to create someone who does that action, which is why we can instantly understand new words like 'googler' or 'texter.'
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