1. To utter or affirm with a solemn appeal to God for the truth of the declaration; to cause to take an oath; to declare or charge upon oath. To swear the peace against one, to make oath against him before the proper officer, as endangering the life or person of him who makes it.

2. To affirm or utter a solemn declaration with an appeal to God for the truth of it; to promise upon oath; to give evidence on oath; to practise profaneness.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• scear,
• awear,
• sewar,
• swuare,
• sceary,
• swead,
• ywar,
• searc,
• nowear,
• searh,
• swoard,
• aswer,
• whear,
• sfear,
• uswer,
• stear,
• sweel,
• sweap,
• swerl,
• sweare

• swayer,
• sear,
• Swarey.

The adverb form of the word "swear" is "swearingly".

The adjective form of "swear" is "sworn".

The plural of the "swear" can be the "swears".

The singular of the "swear" can be the "swear".