The word "skiffed" is a relatively uncommon word and has a few synonyms that could be used instead. One possible synonym is "glided," which conveys a similar sense of moving smoothly and easily through water or air. Another synonym is "drifted," which suggests a slow and steady motion without much effort or resistance. A third option might be "sailed," which implies more deliberate control and direction in the movement, but can still convey a sense of ease and fluidity. Overall, depending on the specific context and intended connotations, there are a range of synonyms that could effectively substitute for the word "skiffed".