Use “cordially invite you” — “cordinally invite you” is incorrect.
Explanation
- Cordial is the adjective meaning warm or friendly.
- Cordially is the adverb formed from cordial, and it correctly modifies the verb invite.
- “Cordinally” is not a standard English word.
Correct examples:
- “We cordially invite you to attend our wedding.”
- “You are cordially invited to the opening reception.”
- “Please join us — you are cordially invited.”
Tone: “cordially” is polite and somewhat formal. Alternatives depending on tone:
- More formal: “We request the honour of your presence” / “You are cordially invited”
- Less formal/warm: “We warmly invite you” / “Please join us”
Tip: If unsure, remember the pattern: adjective + -ly = adverb (cordial → cordially).