I have a hunch that the InEng (IE/IndE) usage is derived from the polite valediction, Best wishes, i.e. “I hope everything goes well for you”, and the phrase “send her/him my best wishes”. In both expressions two objects are not required, it is understood that the speaker is saying ‘I would like to send you the best of luck today.’
The InEng usage of ‘wishes’(noun) sounds almost Italian to my ears. In Italian the expression is auguri, and it's very common to just say to one another Auguri! when it is Christmas or the New Year. Tanti auguri is literally ‘many wishes’ which Italians say to each other on birthdays, it is also used to say ‘congratulations’ and ‘good luck’.
But do BrEng speakers use this form? No, not really. Before joining El&U two years ago, I had never heard this form of exchange before; e.g. “Did you wish mum?” In none of the English coursebooks or grammar books I have bought over the years, have I come across this usage, so my guess would be that it is currently considered non-standard English. But whether native speakers would understand it, is a different question, and I'd say ‘absolutely!’
In "I wish my colleague", there's nothing to decypher. Context will tell us if, for example, the colleague is retiring or on maternity leave.
The form has also entered the dictionary. In Cambridge Dictionaries Online
wish verb (GREET)
[Transitive] Indian English to welcome someone with particular words or a particular action:
He wishes me every morning.
And its usage has been recorded by linguists and experts
Register Variation in Indian English
By Chandrika Balasubramanian
Indeed, Nihilani et al identify 1000 items (many lexical) in their lexicon of usage which they claim are “are used in a distinctive manner by large numbers of educated Indian speakers of English”
Wish: “IVE (Indian Vernacular English) speakers often use this verb where a BS speaker would say ‘greet’. In BS (British Standard), what is wished must be expressed...”
- He wished me when we met this morning.
- He's stopped wishing me
How might a native speaker say the following sentence in British English?
Ever since we broke up she doesn't even wish me on birthdays.
- Since we've broken up, she doesn't even call me on my birthday
- She never calls. She doesn't even wish me ‘Happy Birthday’ since we split up
Best Answer
I don't think it's wrong, but hesitance is a fairly rare word. Here are some results from the Corpus of Contemporary American English:
The numbers are the number of hits. We can see that hesitance is much less common than hesitation. Let's try searching for without hesitation / hesitance:
We can see that without hesitance is not something that people say very often if at all.
I have to say, my first thought when I saw without hesitance in your title was that it looked weird, but like I said, I don't think it's wrong. It's up to you: you can use it if you like, but you will risk sounding weird.