Molly O'Connor, she lived just forninst me,
And tender lines to her I wrote,
If you dare say one hard word again her,
I'll tread on the tail of your coat........ from Mush Mush

Formenst or forminst appears in Shakespeare I'm told . It's still used in parts of the north and west of Ireland. In the Ulster-Scots dictionary they have :   Fornenst ……opposite, directly in front of