Origin of bussprobably , like German dialect, dialectal bus, Welsh and Gaelic bus, kiss, lip, of echoic origin, originally
tr. & intr.v.bussed, buss·ing, buss·es
Origin of bussPossibly blend of obsolete bass ( akin to French baiser )obsolete cuss ( akin to Middle English kissen to kiss ; see kiss . ) or from Scottish Gaelic bus lips, mouth ; see puss 2.
(third-person singular simple present busses, present participle bussing, simple past and past participle bussed)
Origin uncertain; probably ultimately imitative.