I Manner Adverb  Date Century Contrary Circumstances Adjective

oth·er·wise

I

\\-ˌwīz\\ pronoun: something or anything else : something to the contrary
    do very little to enforce competition—and have never intended otherwise — Milton Viorst

II

adverb1. in a different way or manner
    glossed over or otherwise handled — Playboy
2. in different circumstances
    might otherwise have left
3. in other respects
    an otherwise flimsy farce — Current Biography
4. if not
    do what I tell you, otherwise you'll be sorry
5. — paired with an adjective, adverb, noun, or verb to indicate its contrary or to suggest an indefinite alternative
    people whose deeds, admirable or otherwise — John Fischer
    almost thirty thousand women, Irish and otherwise — J. M. Burns
    his opinion as to the success or otherwise of it — Austral. Dict. of Biography

III

adjective:
    if conditions were otherwise

otherwise
  contracted from O.E. phrase on oðre wisan "in the other manner" (see other + -wise), which in M.E. became oþre wise, and mid-14c. oþerwise.

☞ otherwise
other·wise / 5QTEwaiz; NAmE 5QTErwaiz / adverb1. used to state what the result would be if sth did not happen or if the situation were different
   否则；不然:
   My parents lent me the money. Otherwise, I couldn't have afforded the trip.
   我父母借钱给我了。否则,我可付不起这次旅费。
   Shut the window, otherwise it'll get too cold in here.
   把窗户关好,不然屋子里就太冷了。
   We're committed to the project. We wouldn't be here otherwise.
   我们是全心全意投入这项工作的,否则我们就不会到这里来了。
2. apart from that
   除此以外:
   There was some music playing upstairs. Otherwise the house was silent.
   楼上有些音乐声。除此以外,房子里静悄悄的。
   He was slightly bruised but otherwise unhurt.
   他除了一点青肿之外没有受伤。
3. in a different way to the way mentioned; differently
   在其他方面；另；亦:
   Bismarck, otherwise known as 'the Iron Chancellor'
   俾斯麦,亦称为"铁血首相"
   It is not permitted to sell or otherwise distribute copies of past examination papers.
   不准出售或以其他方式散发过去的试卷。
   You know what this is about. Why pretend otherwise (= that you do not) ?
   你明明知道这是怎么回事,为什么装作不知道？
   I wanted to see him but he was otherwise engaged (= doing sth else).
   我想见他,但他正忙着别的事情。
 IDIOMS 
▪ or otherwise
   used to refer to sth that is different from or the opposite of what has just been mentioned
   或其他情况；或相反:
   It was necessary to discover the truth or otherwise of these statements.
   有必要查证这些说法的真实性或虚假性。
   We insure against all damage, accidental or otherwise.
   我们的保险包括一切意外或其他损失。
⇨ more at

know

v.

oth·er·wise
I. \ˈəthə(r)ˌwīz\ adverb
Etymology: Middle English, from Old English (on) ōthre wīsan in other manner
1. : in a different way or manner :
 < he could not act otherwise >
2. : in different circumstances : under other conditions
 < otherwise he might have won >
3. : in other respects
 < weak but otherwise well >
4. : if not
 < do what I tell you, otherwise you'll be sorry >
5. : — paired with an adjective or adverb to indicate its contrary
 < people whose deeds, admirable or otherwise — John Fischer >
II. adjective
1. :
 < if conditions were otherwise >
2. : under different circumstances

 < their political enemies were also their otherwise friends >