Boy name origins & meanings
- Irish : Secluded wooded valley
Family name origins & meanings
- English : habitational name from a place so named in Devon or from Glendon Hall in Northamptonshire. The first is named from Cornish glynne ‘valley’ + Old English dūn ‘hill’, while the Northamptonshire place name is from Old English clǣne ‘clean’ (i.e. clear of weeds) + dūn.
- Irish : reduced and altered form of MacAlinden, an Anglicized form of Gaelic Mac Giolla Fhionntáin ‘son of a devotee of (Saint) Fintan’. Compare Lindy.