Gaelic:
Verse 1
O brochan lom tana lom brochan lom is sughain
Brochan lom tana lom brochan lom is sughain
O brochan lom tana lom brochan lom is sughain
Brochan lom se tana lom se brochan lom is sughain

Chorus
Brochan tana tana tana brochan lom sughain
Brochan tana tana tana brochan lom sughain
Brochan tana tana tana brochan lom sughain
Brochan lom se tana lom se brochan lom is sughain

Verse 2
O thugaibh aran do na gillean leis a bhrochan sugain
O thugaibh aran do na gillean leis a bhrochan sugain
O thugaibh aran do na gillean leis a bhrochan sugain
Brochan lom se tana lom se brochan lom is sughain

Verse 3
Seo an rud a gheibhaemaid o nighean Gobha 'n duine
Seo an rud a gheibhaemaid o nighean Gobha 'n duine
Seo an rud a gheibhaemaid o nighean Gobha 'n duine
Brochan lom se tana lom se brochan lom is sughain

English Phonetic:

Verse 1
O brochen lowm tahna lowm brochen lowm 's sooan
Brochen lowm tahna lowm brochen lowm 's sooan
O brochen lowm tahna lowm brochen lowm 's sooan
Brochen lowm shay tahna lowm shay brochen lowm 's sooan

Chorus
Brochen tahna tahna tahna brochen lowm 's sooan
Brochen tahna tahna tahna brochen lowm 's sooan
Brochen tahna tahna tahna brochen lowm 's sooan
Brochen lowm shay tahna lowm shay brochen lowm 's sooan

Verse 2
O hookeev ahran doe na geelyan lesh a vrochan sooan
O hookeev ahran doe na geelyan lesh a vrochan sooan
O hookeev ahran doe na geelyan lesh a vrochan sooan
Brochen lowm shay tahna lowm shay brochen lowm 's sooan

Verse 3
Show an root a yuhveh meatch o neean goan doonya
Show an root a yuhveh meatch o neean goan doonya
Show an root a yuhveh meatch o neean goan doonya
Brochen lowm shay tahna lowm shay brochen lowm 's sooan

from an article in the Scots Independent:

http://www.scotsindependent.org/features/singasang/brochan_lom.htm