Onn
Onn is the
Irish name of the seventeenth letter of the
Ogham alphabet, ᚑ, meaning "
ash-tree", which is related to
Welsh ''onn(en)'', from the root was *''ōs-, *osen'' 'ash'. Its phonetic value is [o].
The letter's
Bríatharogam kennings are the following:
*''congnaid ech'' "wounder of horses"
*''féthem soíre'' "smoothest of craftsmanship"
*''lúth fían'' "[equipment] of warrior bands"
These refer to different uses of ashwood as horsewhips, wood used by carpenters, and for spears. In the Old Irish period, ''onn'' "ash" was replaced by ''uinnius''. McManus takes this as an indication that the Ogham letter names date to the
Primitive Irish period.
Provided by Wikipedia