Close translation of the months in Arabic:

Muharram = Sacred. pre Islamic Arabs avoided fighting in this month.
Safar = Travel.
Rabi I = First spring.
Rabi II = Second spring.
Jumad I = First inanimate.
Jumad II = Second inanimate.
Rajab = ?
Shaban = Branching.
Ramadan = ? Fasting begin here by sighting the crescent.
Shawal = ? First 5 days of holiday, by tradition families meet and candies are exchanged
Zulqidah = The Sitting.
Zulhijah = The Pilgrimage. Haj is performed in this month.