Terokai and menerokai

Me (sms): dude, what are the meanings of 'terokai' and 'menerokai'?

(15 minutes later)
Dude: explore & exploring.

Me: but X said they're develop and development. (I also sms-ed X.)

Dude: just because X is a Malay doesn't mean he can translate well. Develop and development are kembang and perkembangan.

Me: oh... so terokai is not 'the most OK' and menerokai is not 'making it the most OK'?

Dude (call): what are you doing??!!

Yes, I'm still working on some Bahasa Malaysia words. Being an Indonesian, of course, helps, but there are words that I just have no idea what the meanings are.

Some words are similar to Indonesian words, but with different meanings. Like "bisa" (can, venom) or "jemput" (pick-up, invite).

Other words are "English-based". Like "kolej" (college), "imigresen" (immigration), or "kek" (cake).

So I guess I have a good basis to guess "terokai" as ter-okai -- ter-OK -- 'the most OK'...

There are some more (from Macvaysia): amaun (amount), akaun (account), bajet (budget), bas (bus), bank, beg (bag), buli (bully), cek (cheque), diskaun (discount), draf (as in bank draft), edisi (edition), fail (file), fesyen (fashion), hospital, hotel, imigresen (immigration), kad (card), komuter (commuter), komputer, kompaun (compound, in the sense of a fine or levy), kredit, motosikal (motorcycle), motivasi (motivation), pakej (package), preskripsi (prescription), projek (project), rekreasi (recreation), resit (receipt), sains (science), seks (sex), seksyen (section), sesi (session, as in a university year), skim (scheme), sup (soup), tayar (tire), treler (trailer), tren (train), universiti, wad (ward, as in hospital ward)