Impalisade

In treating of the attack of posts, I referred only to the impalisaded turf works usually thrown up by infantry in the midst of a campaign.

Source: wiktionary

It is consequently most significant to find, as we do upon due investigation, that wherever it occurs in the pre-Christian classics it is used as meaning to impalisade, or stake, or affix to a pale or stake; and has reference, not to crosses, but to single pieces of wood.

Source: wiktionary

In fact, the word atavpów never signified in true classical Greek to 'crucify,' but to “impalisade by striking in pales'—that is to say, to 'enclose,' or to “fence': 'Thou fencest him from the multitude—who will fence him from himself?' (Empedocles on Etna); and so to 'set apart,' to 'consecrate.'

Source: wiktionary