Noah Webster's Dictionary (p. pr. & vb. n.) of Burden.

Multi-Version Concordance Burdening (1 Occurrence) 2 Corinthians 11:9 and being present with you, and having been in want, I was chargeable to no one, for my lack did the brethren supply -- having come from Macedonia -- and in everything burdenless to you I did keep myself, and will keep. (See RSV)