Etymology: Middle English, from Old English thyrel, from thurh through — more at through
II. transitive verb
(-ed/-ing/-s)
Etymology: Middle English thirlen, from Old English thyrlian, from thyrel, n.
III. transitive verb
(-ed/-ing/-s)
Etymology: alteration of Scots thrill, from Middle English (Scots) thrillen to subject to thirlage, enslave, from thril thrall, alteration of Middle English thral — more at thrall
1. Scots & old English law : to subject to thirlage
IV. noun
(-s)
Useful english dictionary. 2012.