Other forms: weeklies
Weekly means happening once every week. A weekly meeting, weekly wages, published weekly.
It works as an adjective and as an adverb — the bins are emptied weekly. As a noun, a weekly is a magazine or newspaper published once a week. Note biweekly, which is genuinely ambiguous and means both twice a week and every two weeks, so careful writers avoid it entirely; and fortnightly, which is the unambiguous British word for every two weeks and does not exist in American English.
1adjectiveweeklyHappening once every week.
“We do our weekly shop at the supermarket on Saturday mornings.”
2nounpublicationA publication issued once a week.
“The local weekly has been printed since 1888.”
Too few real examples of this word to estimate which sense is commonest.
weekly is a frequency.
The word is week plus -ly, the ordinary English way of making an adjective of frequency. Daily, weekly, monthly and yearly are all built the same way, and all four double as adverbs.
Middle English
wykely
English, today
weekly
From Middle English wykely, equivalent to week + -ly or week + -ly. Compare Dutch wekelijks (“weekly”), German wöchentlich (“weekly”), Danish ugentlig (“weekly”), Norwegian ukentlig (“weekly”), Icelandic vikulega (“weekly”), Swedish veckovis (“weekly”).
Etymology from Wiktionary, CC BY-SA