an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation
source: WordNet 3.0
The commoner kind of frankincense, or that obtained from the Norway spruce, the long-leaved pine, and other conifers.
source: Webster 1913
adverb
(used to introduce a logical conclusion) from that fact or reason or as a result
Therefore X must be true. The eggs were fresh and hence satisfactory. We were young and thence optimistic. It is late and thus we must go. The witness is biased and so cannot be trusted.
