hwylbren (“sail”) + -og. <span class="searchmatch">hwylbrennog</span> (feminine singular <span class="searchmatch">hwylbrennog</span>, plural <span class="searchmatch">hwylbrennog</span>, not comparable, not mutable) (nautical) masted, having masts...
(“topmast”) hwylbren y llyw, hwylbren ôl (“mizzen”) hwylbrendy (“masthouse”) <span class="searchmatch">hwylbrennog</span> (“masted, having masts”) D. G. Lewis, N. Lewis, editors (2005–present)...