From weird +‎ -ly.

• IPA^(key): /ˈwɪə(ɹ)dli/

• Audio (Southern England):

  (file)

weirdly (comparative more weirdly, superlative most weirdly)

1. (manner) In a weird manner.

   The teacher suspected he was on drugs because he was behaving weirdly.

   She wore a necklace strung with weirdly-shaped pearls.

   • 2007 February 18, Jake Mooney, “A Case of the Shivers”, in The New York Times‎^[1], archived from the original on 26 November 2022:

     The cracking sound, he explained, as far as I, a non-plumber, could understand, was the sound of the overworked, undermaintained and weirdly installed heating unit’s core rupturing and spilling water into the basement.

2. (evaluative) Contrary to expectations.

   Weirdly, Alice showed up 10 minutes early. She was usually late for everything.

   The roughness of the wool was weirdly pleasant.

• (all senses): strangely, oddly
• (contrary to expectations): surprisingly

• wild rye

weird (“fate, fortune, destiny”) +‎ -ly

weirdly (comparative mair weirdly, superlative maist weirdly)

1. lucky, of prosperous or sinister fate, magical, eerie, dismal