Strangely means in an odd or unexpected way. Behave strangely, strangely quiet, strangely enough.
It also comments on a whole sentence — strangely, nobody objected — where it means it is odd that. Strangely enough is the fixed version of that. Note strange, from the Latin extraneus, foreign, which is also behind extraneous.
1adverbstrangelyIn an odd or unexpected way.
“The dog was behaving strangely, hiding under the bed and refusing food.”
strangely is a manner.
Strange plus -ly, from Old French estrange, from Latin extraneus, external or foreign. Extraneous is the same root.
Middle English
straungely — strangely, aloofly, intricately
English, today
strangely
From Middle English straungely (“strangely, aloofly, intricately”); equivalent to strange + -ly.
Etymology from Wiktionary, CC BY-SA