Origin: 1530–40; < ScotGael
capull coille (by dissimilation), lit., horse of the woods; for first element, cf. ME
capel horse, ON
kapall nag, from the same source (prob. Celtic) as L
caballus horse; sp.
lz is early typographical rendering of manuscript sp.
l + yogh letter (repr. palatal
l); cf. parallel sp. of surnames
Mackenzie, Menzies