Comparatively means when set beside something else. Better or worse than that, rather than good or bad in itself.
It is a hedge, and it does the same job as relatively, so comparatively cheap means cheap for what it is rather than cheap outright. It usually sits before an adjective. The word is useful precisely because it refuses to make an absolute claim, which is also why careful readers ask compared with what. The adjective comparative and the noun comparison belong with it.
1adverbcomparativelyIn comparison with something else.
“The flat was comparatively cheap for the area.”
Middle English
comparatif
English
comparative
English, today
comparatively
Built from
From comparative + -ly. comparative comes from Middle English comparatif. From Middle English comparatif, from Middle French comparatif, from Latin comparātīvus, equivalent to comparātus, from comparāre (“to compare”) + -ive, from Latin -īvus.
Etymology from Wiktionary, CC BY-SA