Function of「果」in (folk, written) Cantonese?

Question

I've started going through《男人唔可以窮》.

In Chapter 1 there is the following paragraph:

阿爸佢教我好多野，放假會同我去睇精工對南華，去彭福公園睇人放風箏，直到我十六歲果年，有一日醫院打黎，話老豆於行動中，由四樓跌左落一個天井度，送去醫院果時，左腳腳底仲係插住一支八吋既生鐵釘。

I'm quite confused by the usage of「果」in these two instances here:

• 直到我十六歲果年

• 送去醫院果時

I'm not sure how faithful the copy of the novel on 紙言 is to the original -or- if it is the folk/colloquial nature of the writings, but「果」doesn't seem to have any definitions that fit the context.

Words.HK only gives the definitions:

1 fruit
2 result/consequence

CC-Canto's defintions:

1 fruit
2 result
3 resolute
4 indeed
5 if really

The jyutping gwo2 and even just gwo don't really pull up many other options even. It's all a bit confusing - any ideas?

---

Here's another example of「果」in context from chapter one of the book:

• 阿爸話佢改我呢個名果時

Answer 1

Here, 果 is just an alternative representation of go2 (meaning that, more commonly written as 嗰, functioning similarly to Mandarin 那), since some variations of Cantonese pronounce Jyutping kw- and gw- as k- and g- (notably under the influence of phonetic changes known as 懶音).