Gainey Name Meaning
Irish (mainly Connacht): reduced Anglicized form of Gaelic Ó Geigheannaigh ‘descendant of Géibheannach’ or Mac Géibheannaigh ‘son of Géibheannach’, a byname meaning ‘fettered’.
Fettered, eh? What does that mean exactly? Let's Google it.
fettered past participle, past tense of fet·ter (Verb)
Verb
1. Restrain with chains or manacles, typically around the ankles.
2. Restrict or restrain (someone) in an unfair or undesirable fashion: "fettered by tradition".
I'm okay with this. ;)